Data Sufficiency

karthikpandian19 wrote:If Sarah was 21 years old exactly 5 years ago, how old was Larry exactly 9 years ago?

(1) Larry is now twice Sarah's age.
(2) Twelve years ago, Jill was 6 years older than Sarah and 20 years younger than Larry.

Say, age of of Sarah and Larry is S and L years respectively now.
Hence, S = (21 + 5) = 26 and we need to determine (L - 9).

Statement 1: L = 2S = 2*26 = 52
Hence, (L - 9) = (52 - 9) = 43

Sufficient

Statement 2: 12 years ago, Larry was (20 + 6) = 26 years older than Sarah. Hence, Larry is still 26 years older than Sarah. Therefore, L = (26 + 26) = 52
Hence, (L - 9) = (52 - 9) = 43

Sufficient

The correct answer is D.