Two-third of a positive number and 16/216 of its reciprocal are equal. Find the positive number. Pick:
A) 4 / 12
B) 4 / 17
C) 4 / 15
D) 4 / 11
E) 4 / 03

Rationale: "explanation : let the positive number be x . then , 2 / 3 x = 16 / 216 * 1 / x x 2 = 16 / 216 * 3 / 2 = 16 / 144 x = √ 16 / 144 = 4 / 12 . answer : a"
Answer: A