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

Redeem

number properties

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 344
Joined: Sat Nov 12, 2011 3:21 am
Thanked: 1 times
Followed by:2 members

number properties

by sud21 » Thu Jan 12, 2012 9:42 am
List A contains x1,x2,...., x10; list B contains y1, y2, ...y10, where numbers in B are the remainders when the numbers in A is divided by 2, respectively. What is sum of numbers in B?
1). Sum of numbers in A is 100
2). There are 6 even numbers in B
Top
Source: — Data Sufficiency |
User avatar
Community Manager
Posts: 1060
Joined: Fri May 13, 2011 6:46 am
Location: Utrecht, The Netherlands
Thanked: 318 times
Followed by:52 members

by neelgandham » Thu Jan 12, 2012 11:11 am
List A contains x1,x2,...., x10; list B contains y1, y2, ...y10, where numbers in B are the remainders when the numbers in A is divided by 2, respectively. What is sum of numbers in B?
1). Sum of numbers in A is 100
Insufficient to answer the question as
A can contain 4 even numbers, 6 odd numbers, The sum of numbers in B is 6
A can contain 6 even numbers, 4 odd numbers, The sum of numbers in B is 4
2). There are 6 even numbers in B
The even numbers in B are 0's, so the rest 4 number are 1's.
sum of numbers in B = 4
Sufficient.

IMO B
Anil Gandham
Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now's online course at https://www.gmatprepnow.com/
Top
Post new topic Post Reply
• Page 1 of 1