One fourth of one third of two fifth of a number is 15. What will be40% of that number	Choose the correct choice:
A) 140  B) 150  C) 180  D) 200  E) 220

Rationale: "explanation : ( 1 / 4 ) * ( 1 / 3 ) * ( 2 / 5 ) * x = 15 then x = 15 * 30 = 450 40 % of 450 = 180 answer : option c"
Answer: C