stock price-DS

indefatigable · #1 (**permalink**) December 16th, 2006, 12:52 AM

The price per share of stock X increased by 10 percent over the same time period that the price per share of stock Y decreased by 10 percent. The reduced price per share of stock Y was what percent of the original price per share of stock X?
(1) The increased price per share of stock X was equal to the original price per share of stock Y.
(2) The increase in the price per share of stock X was 10/11 the decrease in the price per share of stock Y.
pls give the ans with explanation

maverick7777 · #2 (**permalink**) December 16th, 2006, 02:43 AM

My take is D. if that is the OA, then I will post my explanation. So what is OA

indefatigable · #3 (**permalink**) December 16th, 2006, 05:35 AM

Yeap D is the OA

sheetald1 · #4 (**permalink**) December 16th, 2006, 06:10 AM

i go wit d

rashmi · #5 (**permalink**) December 16th, 2006, 11:26 PM

I also go with D

gopikrishna · #6 (**permalink**) December 28th, 2006, 07:23 AM

ANSWER IS D

gaurav85 · #7 (**permalink**) December 4th, 2009, 05:08 AM

My ans D
let orig price of both share be x and y respectively.
from 1) we get 1.1x=y.........so we can calculate reduced price per share of stock Y was what percent of the original price per share of stock X

from 2) 1.1x=10/11*.9y..............this is also sufficient.......

correct me if my reasoning is wrong...........

gopikrishna · #8 (**permalink**) March 1st, 2010, 12:03 PM

D

stock price-DS

Math : GMAT Problem Solving (PS)