If 50% of 3/5 of a number is 36, then the number is?
Choose the correct choice from the following options.
A) 120 B) 100 C) 75 D) 90 E) none of these

Rationale: let the number be x . then 50 % of 3 / 5 of x = 36 50 / 100 * 3 / 5 * x = 36 x = ( 36 * 10 / 3 ) = 120 required number = 120 . correct option : a
Answer: A