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

Redeem

GMAT Prep 2

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 179
Joined: Mon Dec 29, 2008 4:41 am
Thanked: 2 times

GMAT Prep 2

by abhinav85 » Mon May 18, 2009 4:23 pm
For all numbers A and B,the operation @ is defined by a @ b= 2a+2b+1.
What is the value of 6 @ 1?

A.6

B.7

C.13

D.14

E.15

I know its easy but could't solve it..
Top
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 69
Joined: Mon Sep 15, 2008 7:01 pm
Thanked: 2 times

by ManSab » Mon May 18, 2009 4:32 pm
14.

a @ b = 6 @ 1
putting value of a and b in 2a+2b+1 , we will get 14.

Thanks
Top
Master | Next Rank: 500 Posts
Posts: 179
Joined: Mon Dec 29, 2008 4:41 am
Thanked: 2 times

by abhinav85 » Mon May 18, 2009 4:44 pm
Got it thx.

By the way OA is 15.

u did it right 12+2+1=15.
Top
Senior | Next Rank: 100 Posts
Posts: 69
Joined: Mon Sep 15, 2008 7:01 pm
Thanked: 2 times

by ManSab » Mon May 18, 2009 4:52 pm
sorry ..
was occupied with number 14..

Thanks..
Top
Post new topic Post Reply
• Page 1 of 1