OG Quantitative Review

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OG Quantitative Review

by juliasbarreto » Thu Jun 29, 2017 11:17 am
Does anyone has or know any website which provide a division by Math areas of the questions from OG Quantitave Review?

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by barksdale » Thu Jun 29, 2017 2:11 pm
I found this amazing summary from GMAT Genius's review of the book on amazon:

OVERVIEW of OFFICIAL GUIDE 2018

The Official Guides for GMAT Review contain retired real GMAT questions, and are an essential component of your GMAT preparations. The GMAC places questions in order of increasing difficulty, based on its assessment of difficulty. The Quantitative Official Guide has no overlap with questions in the main Official Guide.

The 2018 edition of this book contains 45 new questions out of the 300 total questions, representing 15% new content. These are new questions that we have not encountered before; they are not questions recycled from older GMAC resources.

PROBLEM SOLVING

This guide contains 176 Problem Solving questions. The GMAC classifies question difficulty into three categories as follows:
Easy - 89 (51%, 4 more than 2017)
Medium - 43 (24%, 9 fewer)
Hard - 44 (25%, 5 more)

The Problem Solving section contains 26 new questions, with difficulty of Easy / Medium / Hard as follows: 15 / 5 / 6. This is in lieu of 26 questions from the 2017 edition that have been removed, with difficulty of Easy / Medium / Hard as follows: 11 / 14 / 1. Unlike in prior years, the GMAC has not reclassified the difficulty of any question.

GMAT Genius classifies question difficulty into five categories. Our assessment skews slightly more towards the center, but contains notable differences from the GMAC. Our difficulty assessment is only 76.1% correlated with the GMAC's assessment, clearly showing that there is subjectivity involved in assessing question difficulty. Here's our breakdown:
Super Easy - 21 (12%, 1 fewer than 2017)
Easy - 55 (31%, same)
Medium - 62 (35%, 1 fewer)
Hard - 30 (17%, 1 more)
Very Hard - 8 (5%, 1 more)

Although many math questions entail multiple math concepts, GMAT Genius classifies questions based on our assessment of the primary math concept. We break down the 176 Problem Solving questions as follows:
Arithmetic - Basic: 16 (9.1%, 2 more than 2017)
Arithmetic - Absolute Value: 3 (1.7%, same)
Arithmetic - Divisibility/Factors/Mult.: 7 (4%, 3 fewer)
Arithmetic - Exponents & Roots: 8 (4.5%, 1 fewer)
Arithmetic - Fractions & Ratios: 22 (12.5%, 1 more)
Arithmetic - Percents: 12 (6.8%, 3 fewer)
Arithmetic - Pos/Neg & Odd/Even: 1 (0.6%, 2 fewer)
Algebra - Inequalities: 4 (2.3%, 1 more)
Algebra - Linear Equations: 9 (5.1%, same)
Algebra - Quadratics: 10 (5.7%, 2 more)
Algebra - Simultaneous Equations: 6 (3.4%, same)
Algebra - Variables in Answers: 5 (2.8%, 1 more)
Geometry - Circles: 4 (2.3%, same)
Geometry - Coordinate: 5 (2.8%, same)
Geometry - Rectangles: 5 (2.8%, same)
Geometry - Triangles: 4 (2.3%, same)
Geometry - Other: 4 (2.3%, same)
Statistics - Averages: 14 (8%, 1 more)
Statistics - Other: 3 (1.7%, same)
Word Problems - Combinatorics: 4 (2.3%, same)
Word Problems - Functions & Sequences: 12 (6.8%, same)
Word Problems - Groups/Sets: 3 (1.7%, 1 more)
Word Problems - Probability: 2 (1.1%, same)
Word Problems - Revenue/Profit/Interest: 5 (2.8%, 1 more)
Word Problems - Rate & Work: 8 (4.5%, 1 fewer)

Here's a list of the 26 new Problem Solving questions: 13, 22, 29, 31, 52, 55, 65, 70, 71, 73, 74, 75, 78, 85, 89, 92, 99, 102, 104, 117, 135, 141, 144, 156, 165, 168

Here's a list of the 176 Problem Solving questions categorized by primary math concept:
Arithmetic - Basic: 2, 5, 21, 44, 45, 67, 75, 77, 85, 88, 89, 92, 94, 100, 162, 170
Arithmetic - Absolute Value: 95, 105, 150
Arithmetic - Divisibility/Factors/Multiples: 52, 86, 103, 114, 122, 171, 173
Arithmetic - Exponents & Roots: 34, 36, 38, 48, 90, 112, 143, 160
Arithmetic - Fractions & Ratios: 8, 20, 24, 35, 40, 43, 46, 49, 54, 55, 60, 64, 73, 74, 78, 83, 84, 91, 108, 136, 144, 176
Arithmetic - Percents: 7, 17, 28, 30, 47, 59, 99, 111, 117, 118, 132, 168
Arithmetic - Pos/Neg & Odd/Even: 14
Algebra - Inequalities: 4, 29, 101, 163
Algebra - Linear Equations: 3, 9, 13, 15, 18, 42, 50, 71, 98
Algebra - Quadratics: 1, 19, 22, 33, 63, 66, 110, 121, 128, 156
Algebra - Simultaneous Equations: 12, 25, 31, 32, 41, 133
Algebra - Variables in Answers: 16, 39, 102, 120, 125
Geometry - Circles: 37, 134, 151, 169
Geometry - Coordinate: 26, 87, 96, 109, 115
Geometry - Rectangles: 11, 27, 104, 129, 175
Geometry - Triangles: 62, 68, 140, 164
Geometry - Other: 23, 139, 146, 149
Statistics - Averages: 10, 58, 61, 82, 93, 107, 119, 126, 131, 135, 147, 148, 153, 161
Statistics - Other: 72, 79, 81
Word Problems - Combinatorics: 152, 154, 155, 157
Word Problems - Functions & Sequences: 53, 56, 69, 76, 80, 116, 127, 137, 138, 145, 159, 166
Word Problems - Groups/Sets: 106, 141, 142
Word Problems - Probability: 158, 167
Word Problems - Revenue/Profit/Interest: 6, 65, 124, 165, 172
Word Problems - Rate & Work: 51, 57, 70, 97, 113, 123, 130, 174

DATA SUFFICIENCY

This guide contains 124 Data Sufficiency questions. The GMAC classifies question difficulty into three categories as follows:
Easy - 27 (22%, 1 more than 2017)
Medium - 33 (27%, 2 more)
Hard - 64 (52%, 3 fewer)

In the Data Sufficiency section, questions are not fully presented in order of progressive difficulty, contrary to what the back cover of the book claims. Based on difficulty levels provided in the online version, Medium and Hard difficulty questions are interspersed. The following lists the question numbers for each difficulty level:
Easy - 177-203
Medium - 204-235, 239
Hard - 236-238, 240-300

The Data Sufficiency section contains 19 new questions, with difficulty of Easy / Medium / Hard as follows: 2 / 6 / 11. This is in lieu of 19 questions from the 2017 edition that have been removed, with difficulty of Easy / Medium / Hard as follows: 1 / 4 / 14. The GMAC has not reclassified the difficulty of any question.

GMAT Genius classifies question difficulty into five categories. Our assessment skews significantly towards the easier side, and contains notable differences from the GMAC. Our difficulty assessment is only 68.5% correlated with the GMAC's assessment, demonstrating tremendous subjectivity involved in assessing question difficulty. Here's our breakdown:
Super Easy - 12 (10%, 1 more than 2017)
Easy - 25 (20%, 3 fewer)
Medium - 54 (44%, same)
Hard - 27 (22%, 2 more)
Very Hard - 6 (5%, same)

Although many math questions entail multiple math concepts, GMAT Genius classifies questions based on our assessment of the primary math concept. We break down the 124 Data Sufficiency questions as follows:
Arithmetic - Basic: 3 (2.4%, 2 fewer than 2017)
Arithmetic - Absolute Value: 1 (0.8%, same)
Arithmetic - Divisibility/Factors/Mult.: 8 (6.5%, 2 more)
Arithmetic - Exponents & Roots: 12 (9.7%, 1 fewer)
Arithmetic - Fractions & Ratios: 8 (6.5%, same)
Arithmetic - Percents: 6 (4.8%, same)
Arithmetic - Pos/Neg & Odd/Even: 5 (4%, same)
Arithmetic - Primes: 3 (2.4%, 1 more)
Algebra - Inequalities: 12 (9.7%, 2 more)
Algebra - Linear Equations: 3 (2.4%, same)
Algebra - Quadratics: 7 (5.6%, 2 more)
Algebra - Simultaneous Equations: 9 (7.3%, 5 fewer)
Geometry - Circles: 6 (4.8%, 1 more)
Geometry - Coordinate: 4 (3.2%, same)
Geometry - Rectangles: 3 (2.4%, same)
Geometry - Triangles: 3 (2.4%, same)
Geometry - Other: 2 (1.6%, same)
Statistics - Averages: 6 (4.8%, same)
Statistics - Other: 5 (4%, same)
Word Problems - Functions & Sequences: 7 (5.6%, same)
Word Problems - Groups/Sets: 4 (3.2%, 1 more)
Word Problems - Probability: 1 (0.8%, 1 fewer)
Word Problems - Revenue/Profit/Interest: 2 (1.6%, same)
Word Problems - Rate & Work: 4 (3.2%, same)

Here's a list of the 19 new Data Sufficiency questions: 178, 193, 215, 216, 224, 226, 231, 239, 244, 246, 247, 257, 270, 281, 283, 285, 291, 295, 296

Here's a list of the 124 Data Sufficiency questions categorized by primary math concept:
Arithmetic - Basic: 177, 180, 234
Arithmetic - Absolute Value: 214
Arithmetic - Divisibility/Factors/Multiples: 221, 224, 238, 247, 257, 272, 296, 297
Arithmetic - Exponents & Roots: 184, 210, 226, 240, 251, 254, 267, 268, 271, 282, 285, 300
Arithmetic - Fractions & Ratios: 182, 190, 201, 204, 233, 243, 255, 295
Arithmetic - Percents: 193, 199, 208, 222, 253, 266
Arithmetic - Pos/Neg & Odd/Even: 189, 196, 198, 213, 237
Arithmetic - Primes: 219, 270, 281
Algebra - Inequalities: 181, 188, 192, 200, 206, 215, 227, 231, 249, 252, 263, 276
Algebra - Linear Equations: 195, 218, 250
Algebra - Quadratics: 232, 239, 259, 265, 273, 279, 283
Algebra - Simultaneous Equations: 178, 202, 203, 217, 223, 230, 242, 269, 284
Geometry - Circles: 209, 216, 236, 256, 258, 278
Geometry - Coordinate: 191, 260, 290, 299
Geometry - Rectangles: 179, 185, 248
Geometry - Triangles: 261, 275, 291
Geometry - Other: 205, 207
Statistics - Averages: 194, 211, 228, 241, 244, 245
Statistics - Other: 225, 229, 235, 262, 294
Word Problems - Functions & Sequences: 197, 220, 264, 277, 280, 286, 287
Word Problems - Groups/Sets: 246, 274, 288, 293
Word Problems - Probability: 292
Word Problems - Revenue/Profit/Interest: 183, 186
Word Problems - Rate & Work: 187, 212, 289, 298

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by juliasbarreto » Fri Jun 30, 2017 6:13 am
Thanks for this, but I am looking for the same as you find but for the OG "QUANTITATIVE" Review book. The one that comes with only math questions... Do you have for this?

barksdale wrote:I found this amazing summary from GMAT Genius's review of the book on amazon:

OVERVIEW of OFFICIAL GUIDE 2018

The Official Guides for GMAT Review contain retired real GMAT questions, and are an essential component of your GMAT preparations. The GMAC places questions in order of increasing difficulty, based on its assessment of difficulty. The Quantitative Official Guide has no overlap with questions in the main Official Guide.

The 2018 edition of this book contains 45 new questions out of the 300 total questions, representing 15% new content. These are new questions that we have not encountered before; they are not questions recycled from older GMAC resources.

PROBLEM SOLVING

This guide contains 176 Problem Solving questions. The GMAC classifies question difficulty into three categories as follows:
Easy - 89 (51%, 4 more than 2017)
Medium - 43 (24%, 9 fewer)
Hard - 44 (25%, 5 more)

The Problem Solving section contains 26 new questions, with difficulty of Easy / Medium / Hard as follows: 15 / 5 / 6. This is in lieu of 26 questions from the 2017 edition that have been removed, with difficulty of Easy / Medium / Hard as follows: 11 / 14 / 1. Unlike in prior years, the GMAC has not reclassified the difficulty of any question.

GMAT Genius classifies question difficulty into five categories. Our assessment skews slightly more towards the center, but contains notable differences from the GMAC. Our difficulty assessment is only 76.1% correlated with the GMAC's assessment, clearly showing that there is subjectivity involved in assessing question difficulty. Here's our breakdown:
Super Easy - 21 (12%, 1 fewer than 2017)
Easy - 55 (31%, same)
Medium - 62 (35%, 1 fewer)
Hard - 30 (17%, 1 more)
Very Hard - 8 (5%, 1 more)

Although many math questions entail multiple math concepts, GMAT Genius classifies questions based on our assessment of the primary math concept. We break down the 176 Problem Solving questions as follows:
Arithmetic - Basic: 16 (9.1%, 2 more than 2017)
Arithmetic - Absolute Value: 3 (1.7%, same)
Arithmetic - Divisibility/Factors/Mult.: 7 (4%, 3 fewer)
Arithmetic - Exponents & Roots: 8 (4.5%, 1 fewer)
Arithmetic - Fractions & Ratios: 22 (12.5%, 1 more)
Arithmetic - Percents: 12 (6.8%, 3 fewer)
Arithmetic - Pos/Neg & Odd/Even: 1 (0.6%, 2 fewer)
Algebra - Inequalities: 4 (2.3%, 1 more)
Algebra - Linear Equations: 9 (5.1%, same)
Algebra - Quadratics: 10 (5.7%, 2 more)
Algebra - Simultaneous Equations: 6 (3.4%, same)
Algebra - Variables in Answers: 5 (2.8%, 1 more)
Geometry - Circles: 4 (2.3%, same)
Geometry - Coordinate: 5 (2.8%, same)
Geometry - Rectangles: 5 (2.8%, same)
Geometry - Triangles: 4 (2.3%, same)
Geometry - Other: 4 (2.3%, same)
Statistics - Averages: 14 (8%, 1 more)
Statistics - Other: 3 (1.7%, same)
Word Problems - Combinatorics: 4 (2.3%, same)
Word Problems - Functions & Sequences: 12 (6.8%, same)
Word Problems - Groups/Sets: 3 (1.7%, 1 more)
Word Problems - Probability: 2 (1.1%, same)
Word Problems - Revenue/Profit/Interest: 5 (2.8%, 1 more)
Word Problems - Rate & Work: 8 (4.5%, 1 fewer)

Here's a list of the 26 new Problem Solving questions: 13, 22, 29, 31, 52, 55, 65, 70, 71, 73, 74, 75, 78, 85, 89, 92, 99, 102, 104, 117, 135, 141, 144, 156, 165, 168

Here's a list of the 176 Problem Solving questions categorized by primary math concept:
Arithmetic - Basic: 2, 5, 21, 44, 45, 67, 75, 77, 85, 88, 89, 92, 94, 100, 162, 170
Arithmetic - Absolute Value: 95, 105, 150
Arithmetic - Divisibility/Factors/Multiples: 52, 86, 103, 114, 122, 171, 173
Arithmetic - Exponents & Roots: 34, 36, 38, 48, 90, 112, 143, 160
Arithmetic - Fractions & Ratios: 8, 20, 24, 35, 40, 43, 46, 49, 54, 55, 60, 64, 73, 74, 78, 83, 84, 91, 108, 136, 144, 176
Arithmetic - Percents: 7, 17, 28, 30, 47, 59, 99, 111, 117, 118, 132, 168
Arithmetic - Pos/Neg & Odd/Even: 14
Algebra - Inequalities: 4, 29, 101, 163
Algebra - Linear Equations: 3, 9, 13, 15, 18, 42, 50, 71, 98
Algebra - Quadratics: 1, 19, 22, 33, 63, 66, 110, 121, 128, 156
Algebra - Simultaneous Equations: 12, 25, 31, 32, 41, 133
Algebra - Variables in Answers: 16, 39, 102, 120, 125
Geometry - Circles: 37, 134, 151, 169
Geometry - Coordinate: 26, 87, 96, 109, 115
Geometry - Rectangles: 11, 27, 104, 129, 175
Geometry - Triangles: 62, 68, 140, 164
Geometry - Other: 23, 139, 146, 149
Statistics - Averages: 10, 58, 61, 82, 93, 107, 119, 126, 131, 135, 147, 148, 153, 161
Statistics - Other: 72, 79, 81
Word Problems - Combinatorics: 152, 154, 155, 157
Word Problems - Functions & Sequences: 53, 56, 69, 76, 80, 116, 127, 137, 138, 145, 159, 166
Word Problems - Groups/Sets: 106, 141, 142
Word Problems - Probability: 158, 167
Word Problems - Revenue/Profit/Interest: 6, 65, 124, 165, 172
Word Problems - Rate & Work: 51, 57, 70, 97, 113, 123, 130, 174

DATA SUFFICIENCY

This guide contains 124 Data Sufficiency questions. The GMAC classifies question difficulty into three categories as follows:
Easy - 27 (22%, 1 more than 2017)
Medium - 33 (27%, 2 more)
Hard - 64 (52%, 3 fewer)

In the Data Sufficiency section, questions are not fully presented in order of progressive difficulty, contrary to what the back cover of the book claims. Based on difficulty levels provided in the online version, Medium and Hard difficulty questions are interspersed. The following lists the question numbers for each difficulty level:
Easy - 177-203
Medium - 204-235, 239
Hard - 236-238, 240-300

The Data Sufficiency section contains 19 new questions, with difficulty of Easy / Medium / Hard as follows: 2 / 6 / 11. This is in lieu of 19 questions from the 2017 edition that have been removed, with difficulty of Easy / Medium / Hard as follows: 1 / 4 / 14. The GMAC has not reclassified the difficulty of any question.

GMAT Genius classifies question difficulty into five categories. Our assessment skews significantly towards the easier side, and contains notable differences from the GMAC. Our difficulty assessment is only 68.5% correlated with the GMAC's assessment, demonstrating tremendous subjectivity involved in assessing question difficulty. Here's our breakdown:
Super Easy - 12 (10%, 1 more than 2017)
Easy - 25 (20%, 3 fewer)
Medium - 54 (44%, same)
Hard - 27 (22%, 2 more)
Very Hard - 6 (5%, same)

Although many math questions entail multiple math concepts, GMAT Genius classifies questions based on our assessment of the primary math concept. We break down the 124 Data Sufficiency questions as follows:
Arithmetic - Basic: 3 (2.4%, 2 fewer than 2017)
Arithmetic - Absolute Value: 1 (0.8%, same)
Arithmetic - Divisibility/Factors/Mult.: 8 (6.5%, 2 more)
Arithmetic - Exponents & Roots: 12 (9.7%, 1 fewer)
Arithmetic - Fractions & Ratios: 8 (6.5%, same)
Arithmetic - Percents: 6 (4.8%, same)
Arithmetic - Pos/Neg & Odd/Even: 5 (4%, same)
Arithmetic - Primes: 3 (2.4%, 1 more)
Algebra - Inequalities: 12 (9.7%, 2 more)
Algebra - Linear Equations: 3 (2.4%, same)
Algebra - Quadratics: 7 (5.6%, 2 more)
Algebra - Simultaneous Equations: 9 (7.3%, 5 fewer)
Geometry - Circles: 6 (4.8%, 1 more)
Geometry - Coordinate: 4 (3.2%, same)
Geometry - Rectangles: 3 (2.4%, same)
Geometry - Triangles: 3 (2.4%, same)
Geometry - Other: 2 (1.6%, same)
Statistics - Averages: 6 (4.8%, same)
Statistics - Other: 5 (4%, same)
Word Problems - Functions & Sequences: 7 (5.6%, same)
Word Problems - Groups/Sets: 4 (3.2%, 1 more)
Word Problems - Probability: 1 (0.8%, 1 fewer)
Word Problems - Revenue/Profit/Interest: 2 (1.6%, same)
Word Problems - Rate & Work: 4 (3.2%, same)

Here's a list of the 19 new Data Sufficiency questions: 178, 193, 215, 216, 224, 226, 231, 239, 244, 246, 247, 257, 270, 281, 283, 285, 291, 295, 296

Here's a list of the 124 Data Sufficiency questions categorized by primary math concept:
Arithmetic - Basic: 177, 180, 234
Arithmetic - Absolute Value: 214
Arithmetic - Divisibility/Factors/Multiples: 221, 224, 238, 247, 257, 272, 296, 297
Arithmetic - Exponents & Roots: 184, 210, 226, 240, 251, 254, 267, 268, 271, 282, 285, 300
Arithmetic - Fractions & Ratios: 182, 190, 201, 204, 233, 243, 255, 295
Arithmetic - Percents: 193, 199, 208, 222, 253, 266
Arithmetic - Pos/Neg & Odd/Even: 189, 196, 198, 213, 237
Arithmetic - Primes: 219, 270, 281
Algebra - Inequalities: 181, 188, 192, 200, 206, 215, 227, 231, 249, 252, 263, 276
Algebra - Linear Equations: 195, 218, 250
Algebra - Quadratics: 232, 239, 259, 265, 273, 279, 283
Algebra - Simultaneous Equations: 178, 202, 203, 217, 223, 230, 242, 269, 284
Geometry - Circles: 209, 216, 236, 256, 258, 278
Geometry - Coordinate: 191, 260, 290, 299
Geometry - Rectangles: 179, 185, 248
Geometry - Triangles: 261, 275, 291
Geometry - Other: 205, 207
Statistics - Averages: 194, 211, 228, 241, 244, 245
Statistics - Other: 225, 229, 235, 262, 294
Word Problems - Functions & Sequences: 197, 220, 264, 277, 280, 286, 287
Word Problems - Groups/Sets: 246, 274, 288, 293
Word Problems - Probability: 292
Word Problems - Revenue/Profit/Interest: 183, 186
Word Problems - Rate & Work: 187, 212, 289, 298

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by dabral » Mon Jul 03, 2017 6:02 pm

hi juliasbarreto,

I did a broad categorization of the 2017 GMAT Quantitative Review. The problems are segmented in to broad categories of Number Theory, Algebra, etc. Here is the link to the page: https://www.gmatquantum.com/blog/topic-s ... -2017.html

Cheers,
Dabral
Free Video Explanations: 2021 GMAT OFFICIAL GUIDE.

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by Matt@VeritasPrep » Sun Aug 06, 2017 10:51 pm
It also isn't a bad idea to practice categorizing them yourself to see whether you're recognizing problems well and thinking of which topics to draw on when attacking a question.