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

Redeem

Is the integer n a multiple of 15?

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 371
Joined: Fri Mar 06, 2009 2:48 am
Thanked: 27 times
GMAT Score:740

by 2010gmat » Mon May 04, 2009 6:55 am
1. In suff -- n is a multiple of 20 .. can be 40, 60 , etc
2. n+ 6 is multiple of 3 ... In suff .. as it can be anything -- 6,9 ,15

taking 1 and 2 together.... n is a multiple of 20 and 3 ---> n has factors 2, 3 and 5 ---> n is a multiple of 15...

---> c
hope it helps u...was easy to solve but difficult to explain :roll:
Top
Post new topic Post Reply
• Page 1 of 1