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

Redeem

AP GP

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pm
Location: Gandhinagar
Thanked: 41 times
Followed by:2 members

AP GP

by shashank.ism » Tue Feb 09, 2010 1:10 pm
The sum of 3rd and 15th elements of an arithmetic progression is equal to the sum of 6th, 11th and 13th elements of the progression. Then which element of the series should necessarily be equal to zero?


1st
9th
12th
10th
None of these
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Source: — Problem Solving |
User avatar
Community Manager
Posts: 1537
Joined: Mon Aug 10, 2009 6:10 pm
Thanked: 653 times
Followed by:252 members

by papgust » Tue Feb 09, 2010 6:16 pm
Let a be the first term in the sequence.

(a+2)+(a+14) = (a+5)+(a+10)+(a+12)
2a +16 = 3a+27
a = -11

a+11 equals 0

So, 12th term (C)
Top
Post new topic Post Reply
• Page 1 of 1