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When 242 is divided by a certain divisor the remainder obtained is 8. When 698 is divided by the same divisor the remainder obtained is 9. When the sum of the two numbers 242 and 698 is divided by the divisor, the remainder obtained is 4. What is the value of the divisor? A 11 B 17 C 13 D 23 E None...

by sanju09

Tue May 17, 2016 4:26 am
Forum: Problem Solving
Topic: When 242 is divided by a certain divisor the remainder is 8
Replies: 3
Views: 3676

Thanks to help. http://s9.postimg.org/7w99dkorf/Untitled_9.jpg Plugging in the numbers is the easiest way out to crackdown such problems: (1) √x is divisible by 4. Here, x = 16 fits but 16 is NOT divisible by 24; and x = 576 also fits but 576 is YES divisible by 24. Hence insufficient! (2) Since ...

by sanju09

Wed Feb 24, 2016 2:07 am
Forum: Data Sufficiency
Topic: Positive integer x divisible by 24
Replies: 4
Views: 5651

buy 1 chocolate apple, 1 chocolate snowball, and 1 rock cake

At a school fete, 3 chocolate apples cost $6 but 1 chocolate apple with 2 chocolate snowballs cost $3. If 1 chocolate snowball costs 30 cents more than the cost of 1 rock cake, how much, rounded to nearest dollar, would it cost to buy 1 chocolate apple, 1 chocolate snowball, and 1 rock cake at the s...

by sanju09

Fri Feb 19, 2016 11:50 pm
Forum: Problem Solving
Topic: buy 1 chocolate apple, 1 chocolate snowball, and 1 rock cake
Replies: 4
Views: 1461

Be careful friends and reread "For integers x, y, and z" to avoid consider fractional possibilities.

by sanju09

Fri Feb 19, 2016 11:48 pm
Forum: Problem Solving
Topic: Tough PS - Number Properties & Exponents
Replies: 5
Views: 1797

For integers x, y, and z, if ((2^x)^y)^z = 131072 which of the following must be true ? A. The product xyz is even B. The product xyz is odd C. The product xy is even D. The product yz is prime E. The product yz is positive I can understand that the last digit will be odd (i.e. z = odd) but how to ...

by sanju09

Thu Feb 18, 2016 12:26 am
Forum: Problem Solving
Topic: Tough PS - Number Properties & Exponents
Replies: 5
Views: 1797

There are 5 consecutive integers. If the product of the 5 numbers is not zero, what is the number of the negative numbers of them? 1) The greatest number of the 5 numbers is less than 5. 2) At least one of the 5 numbers is negative. * A solution will be posted in two days. This question is poorly w...

by sanju09

Fri Feb 12, 2016 12:49 am
Forum: Data Sufficiency
Topic: There are 5 consecutive integers. If the product of the 5 nu
Replies: 2
Views: 880

to recite the sacred song?

What is the least possible number of students who could be made to stand in a rectangular array to recite the sacred song? (1) The students could be made to stand along r rows each containing 17 students. (2) The students could be made to stand along c columns each containing 5 students. [spoiler] M...

by sanju09

Fri Feb 05, 2016 2:14 am
Forum: Data Sufficiency
Topic: to recite the sacred song?
Replies: 0
Views: 690

If a and b are positive, is (a^-1 + b^-1)^-1 less than (a^-1b^-1)^-1? (1) a = 2b (2) a + b > 1 Statement(1) ALONE is sufficient, but statement (2) alone is not sufficient. Statement(2) ALONE is sufficient, but statement (1) alone is not sufficient. BOTH statements TOGETHER are sufficient, but NEITH...

by sanju09

Fri Feb 05, 2016 1:39 am
Forum: Data Sufficiency
Topic: If a and b are positive...
Replies: 2
Views: 942

Q. Sum of N natural numbers is S1, Sum of natural numbers upto 2N is S2, Sum of natur.{l numbers upto 3N is S3. Consider a as 1st term and d as common diference, Then find value of S3-S1-S2? Dear rajan_agarwal, If you are preparing for GMAT, then you should not visit a source this question belongs ...

by sanju09

Fri Feb 05, 2016 12:25 am
Forum: Problem Solving
Topic: Numbers
Replies: 2
Views: 912

plz explain A number m is 8 times another number n, the percentage that n is less than m is A.90% B.87.25% C.66.66% D.12.50% E.40% Take numbers in examples, 16 is 8 times another number 2, the percentage that 2 is less than 16 is = [(16 - 2)/16] × 100 = [(14)/16] × 100 = [spoiler] 87.5%. There’...

by sanju09

Fri Feb 05, 2016 12:16 am
Forum: Problem Solving
Topic: Quant
Replies: 2
Views: 811

plz explain The average age of 8 people increases by 2 years when two women are included in place of two men aged 20 & 24. find the average age of the two women? A.30 B.32 C.35 D.40 E.45 If the average age of 8 people increases by 2, then its total increases by 16. It means the ages 20 and 24 that ...

by sanju09

Fri Feb 05, 2016 12:07 am
Forum: The GMAT Avengers Study Group
Topic: Quant
Replies: 1
Views: 1261

on a particular day, a shop sold 3 fewer laptops of brand X than two times the number of laptops of brand Y. if a customer who bought a laptop of X Brand had purchased a laptop Y brand instead of X Brand. the number of Brand X & The number of Brand Y sold would have been seen same, what is the tota...

by sanju09

Thu Feb 04, 2016 11:42 pm
Forum: Problem Solving
Topic: Quant
Replies: 3
Views: 1927

Max can have his mobile phone repaired for $4000, or he can trade it in & receive $2000 credit toward the purchase of new mobile that sells for $8400. if Max trades in his mobile phone, the cost of the purchasing the new mobile is what percent greater than the cost of having his current mobile phon...

by sanju09

Thu Feb 04, 2016 11:26 pm
Forum: GMAT Math
Topic: Quant
Replies: 3
Views: 1976

Hi, I needed a little help, I own the OG quantitative review and all Manhattan strategy guides 2005 edition. Now the appendix in each of these Manhattan books is not in sync with the questions in the Quantitative Review...is there anyway you can help me with this? It'll help me save a lot of time. ...

by sanju09

Wed Feb 03, 2016 12:40 am
Forum: Problem Solving
Topic: help-need manhattan appendix for og quantitative review 2016
Replies: 3
Views: 1293

Is the perimeter of a triangle greater than 100? 1) The shortest side is greater than 100/3 2) The longest side is greater than 50 * A solution will be posted in two days. (i) If the shortest side is greater than 100/3, other two sides would also be greater than 100/3, thus proving its perimeter to...

by sanju09

Thu Jan 21, 2016 3:37 am
Forum: Data Sufficiency
Topic: Is the perimeter of a triangle greater than 100?
Replies: 1
Views: 735