adkikani wrote:
Project DS Butler: Day 17: Data Sufficiency (DS34)
For DS butler Questions Click HereIf John is exactly 4 years older than Bill, how old is John?
(1) Exactly 9 years ago John was 5 times as old as Bill was then.
(2) Bill is more than 9 years old.
From the first statement I can create equation:
\(5(x+4)-9=\frac{(x-9)}{5}\)
\(5x+20-45=x-9\)
\(4x =-9+25\)
\(4x=16\)
\(x =4\)
SUFFICIENT
Statement Two IS INSUFFICIENT illogical if John is 4 older than Bill, how can Bill be more than 9 years older
IMO: A