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

Redeem

DS Question on Integers

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 31
Joined: Sun Jul 27, 2008 12:41 pm
Location: New York, NY
Thanked: 2 times

DS Question on Integers

by Azntycoon » Mon Jul 28, 2008 5:17 pm
Apologies if this is a 2x post, but I did try to search for this question first.


If N is a positive integer, is the units digit of N equal to zero?

(1) 14 and 35 are factors of N
(2) N = (2^5)(3^2)(5^7)(7^6)

The official answer is D (Each alone is sufficient).

I tried to work this out, and I just want some clarification from anyone as to whether it is possible for the two statements above to give you different answers?

thanks
Top
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 232
Joined: Fri Jul 04, 2008 4:14 pm
Thanked: 14 times
Followed by:1 members
GMAT Score:760

by rs2010 » Mon Jul 28, 2008 5:51 pm
A )when you multiply 14 and 35 you will get unit digit 0 and what ever you mutliply later you will get zero.

B) you can easily get unit digit from this one.

Both are sufficient.

Anyway question asks yes or no which you can answer.
Top
Post new topic Post Reply
• Page 1 of 1