A number x is multiplied by 3, and this product is then divided by 7. 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) 3/7
C) 5/3
D) 3/5
E) 9/25
sqrt(3x/7) to be perfect square x has to 3/7   Ans: 3/7
<result>B</result>
A number x is multiplied by 3, and this product is then divided by 7. If the positive square root of the result of these two operations equals x, what is the value of x if x≠0 ?