The ratio of three numbers is 3 : 4: 7 and their product is The numbers are:

A 9, 12, 21

B 15, 20, 25

C 18, 24, 42

D None of these

Correct Answer: Option C

let the numbers be 3x, 4x and 7x. Then, 3x x 4x x 7x = 84x3 = 18144. Therefore, x