Search found 44 matches


Is \(x = 4?\) \((1)\quad |x + 2| < 10\) \((2) \quad |x + 5| > 10\) [spoiler]OA=B[/spoiler] Source: Veritas Prep TWO ways.. (I) Just substitute x=4 and see what happens.. \((1)\quad |x + 2| < 10\) |4+2|<10...6<10..Yes But x as -4, 0, 1 and so on also fit in Insuff \((2) \quad |x + 5| > 10\) |4+5|>10...

by chetan.sharma

Wed Nov 27, 2019 7:52 am
Forum: Data Sufficiency
Topic: Is \(x = 4?\)
Replies: 2
Views: 616

A certain bushel of wheat generates one-third the profit of a bushel of corn. If a bushel of corn generates five-fourths the profit of a bushel of truffles, what fraction of the profit from a bushel of wheat is the profit from a bushel of truffles? A. 5/12 B. 4/5 C. 5/4 D. 5/3 E. 12/5 Is there a st...

by chetan.sharma

Wed Nov 27, 2019 7:40 am
Forum: Problem Solving
Topic: A certain bushel of wheat generates one-third the profit of
Replies: 5
Views: 1029

When positive integer n is divided by 3, the remainder is 2; and when positive integer t is divided by 5, the remainder is 3. What is the remainder when the product nt is divided by 15? (1) n-2 is divisible by 5. (2) t is divisible by 3. OA C Source: GMAT Prep So n=3x+2 and t=5y+3 nt=(3x+2)(5y+3)=1...

by chetan.sharma

Fri Oct 05, 2018 5:09 am
Forum: Data Sufficiency
Topic: When positive integer n is divided by 3, the remainder is 2
Replies: 4
Views: 1085

Three piles (A, B, C) of 7 beans each are to be made from 12 red, 5 yellow and 4 green beans. If each stack must contain at least one bean of each color and stack A must get the maximum number of red beans possible, what is the minimum number of red beans to be put in stack B? (A) 1 (B) 2 (C) 3 (D)...


[email protected] Revolution wrote:[Math Revolution GMAT math practice question]

||2-3|-|2-5||=?

A. 1
B. 2
C. 3
D. 4
E. 5
Straight forward..
||2-3|-|2-5||=||-1|-|-3||=|1-3|=2

[spoiler]B

by chetan.sharma

Fri Oct 05, 2018 4:53 am
Forum: Problem Solving
Topic: ||2-3|-|2-5||=?
Replies: 4
Views: 643

A box contains 1 blue ball, 1 green ball, 1 yellow ball, and 2 red balls. Three balls are randomly selected (one after the other) without replacement. What is the probability that the 2nd ball is NOT red and the 3rd ball is yellow? A) 1/30 B) 1/20 C) 1/10 D) 3/20 E) 1/5 [spoiler]OA=C[/spoiler]. How...

by chetan.sharma

Mon Apr 02, 2018 7:07 pm
Forum: Problem Solving
Topic: A box contains 1 blue ball, 1 green ball, 1 yellow ball
Replies: 3
Views: 842

How do i prove that 52563744 is divisible by 24 ? Hi, for being div by 24, the numbershould be div by 3 and 8.. for 8 or 2^3, we check for div of last three digits of number.. so if 744 is div by 8, the entire number will be div by 8.. 744/8 = 93.. so YES now 3.. for a number to be div by 3, the su...

by chetan.sharma

Wed May 04, 2016 2:42 pm
Forum: Problem Solving
Topic: How do i prove that 52563744 is divisible by 24 ?
Replies: 5
Views: 4884

Which of the following is true about 0<|x|-4x<5? A. -1<x<0 B. 0<x<1 C. 1<x<2 D. 2<x<3 E. 3<x<4 * A solution will be posted in two days. The choices have made the Q very simple.. when can be |x|-4x be greater than 0.. NEVER when x is positive.. ONLY A is left.. Substitution:- you can also substitute...

by chetan.sharma

Tue Apr 26, 2016 8:05 am
Forum: Problem Solving
Topic: Which of the following is true about 0<|x|-4x<5? A. -
Replies: 2
Views: 1170

At a circular table for eight will sit six adults and two small children. The two children will sit next to each other, and the two parents of the children will sit next to the children so that there is one parent on each side of the two children. If rotating their positions around the table is not...

by chetan.sharma

Tue Apr 26, 2016 5:30 am
Forum: Problem Solving
Topic: At a circular table for eight will sit six adults
Replies: 3
Views: 1534

Is there some rubric or step process that will work for these types of problems? HI, the most important thing is to get both the cans in SAME ounces- concentrate is in 12-ounces can and juice or final product is in 6-ounces.. 1 ounce concentrate mixes with 3-ounces of water to give us (1+3) ounces ...

by chetan.sharma

Mon Apr 25, 2016 8:09 pm
Forum: GMAT Math
Topic: Confusing Word Problem
Replies: 4
Views: 3667

A list contains n distinct integers. Are all n integers consecutive? (1) The average (arithmetic mean) of the list with the lowest number removed is 1 more than the average (arithmetic mean) of the list with the highest number removed. (2) The positive difference between any two numbers in the list...

by chetan.sharma

Mon Apr 25, 2016 7:59 pm
Forum: Data Sufficiency
Topic: n integers consecutive
Replies: 1
Views: 1126

How should I be thinking about problems like this one? Hi, we can see that the belt covers half the circumference of left wheel and half the circumference of right belt.. so it overall covers the entire circumference, which is 1*pi.. so the rest of the belt =15-pi.. this belt covers two times the d...

by chetan.sharma

Mon Apr 25, 2016 4:58 am
Forum: GMAT Math
Topic: Geometry cylinder problem
Replies: 2
Views: 2044

http://s31.postimg.org/81gqsiuiv/Screen_Shot_2016_04_23_at_9_42_11_AM.jpg Thanks to help. Machine M, working alone at its constant rate, produces x widgets every 4 minutes. Machine N, working alone at its constant rate, produces y widgets every 5 minutes. If machines M and N working simultaneously ...

by chetan.sharma

Sat Apr 23, 2016 11:24 pm
Forum: Data Sufficiency
Topic: Rate and work
Replies: 3
Views: 1440

12. If the region enclosed by the y-axis, the line y=2 , and the curve y=sqrt(2) is revolved about the y-axis, the volume of the solid generated is (A) 32PI/5 (B) 16PI/3 (C) 16PI/5 (D) 8PI/3 (E) PI Hi, firstly the Q is incomplete as also mentioned above by kaustabh.. y=square root 2, is not a curve...

by chetan.sharma

Fri Apr 22, 2016 7:25 pm
Forum: Problem Solving
Topic: region enclosed by the y-axis
Replies: 13
Views: 9799

Hi, In both the options B and C, the VERB is missing.. B is perfect buit for the missing VERB 'is'.. B) The banana, which contains high levels of potassium and other important minerals, IS considered Hi , Thanks for your reply. Just a quick question if this options misses a main verb, then CONSIDER...

by chetan.sharma

Fri Apr 22, 2016 7:03 pm
Forum: Sentence Correction
Topic: The banana
Replies: 4
Views: 1743