One fourth of one third of two fifth of a number is 15. What will be the 40% of that number is? Choose the correct answer:
A) 120  B) 130  C) 150  D) 180  E) 250

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