Two-third of a positive number and 25/216 of its reciprocal are equal. The number is:	Choose the correct choice from the following
A) 5 / 12	B) 12 / 5	C) 25 / 144	D) 144 / 25	E) 146 / 25

Rationale: "let the number be x . then , 2 / 3 x = 25 / 216 * 1 / x x 2 = 25 / 216 * 3 / 2 = 25 / 144 x = 5 / 12 answer : a"
Answer: A