BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

numbers prob shd i used substitution

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pm
Location: Milpitas, CA
Thanked: 1854 times
Followed by:523 members
GMAT Score:770

by Anurag@Gurome » Tue Feb 28, 2012 11:22 pm
quantskillsgmat wrote:x,y,a and b are positive integers.when x is divided by y remainder is 6.when a is divided by b remainder is 9.which of the following is not possible value of y+b.
a)24 b)21 c)20 d)17 e)15
x/y gives a remainder of 6 and a/b gives a remainder of 9.
Now remainder is always less than the divisor, because if the remainder is greater than the divisor, it means we have the wrong quotient.
So, y > 6 and b > 9
So, y + b > 15

The correct answer is E.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Post new topic Post Reply
• Page 1 of 1