A number x is multiplied by 7, and this product is then divided by 3. If the positive square root of the result of these two operations equals x, what is the value of x if x≠0 ?
Choose one:
A) 25 / 9	B) 7 / 3	C) 5 / 3	D) 3 / 5	E) 9 / 25

Rationale: "sqrt ( 7 x / 3 ) to be perfect square x has to 7 / 3 ans : b"
Answer: B