4GMAT - Online GMAT Preparation

1. If today the price of an item is $3,600, what was the price of the item exactly 2 years ago?

(1) The price of the item increased by 10 per-cent per year during this 2-year period.
(2) Today the price of the item is 1.21 times its price exactly 2 years ago.

Choice D

Each statement is independently sufficient to answer the question.

From statement A
The price a year back would have been 3600 / 1.1.
The price two years back would have been 3600 / (1.1 * 1.1) = 3600 / 1.21

From statement B
We directly get the price two years back as 3600 / 1.21.