progressions

Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pm; Location: Vancouver, BC; Thanked: 5254 times; Followed by:1268 members; GMAT Score:770

by Brent@GMATPrepNow » Mon Jun 04, 2018 9:52 am

vaibhav101 wrote:find the maximum sum of the A.P. 19, 19/5, 87/5......................

A 356
B 1176/5
C 345
D 654
E 625

What's the source of this question?
It's very un-GMAT-like.

First, students aren't required to know what an A.P. is.
Second, {19, 19/5, 87/5,...} this is not an arithmetic progression (A.P.).
Third, what do you mean by "maximum sum"? Are you thinking of an infinite GEOMETRIC series?

Brent Hanneson - Creator of GMATPrepNow.com