The ratio of three numbers is 3 : 4 : 7 and their product is 18144. The numbers are
Choose the correct choice from the following options.
A) 9, 12, 21 B) 15, 20, 25 C) 18, 24, 42 D) 22, 36. 48 E) None
Sol.   Let the numbers be 3x, 4x and 7x. Then   3x × 4x × 7x = 18144   ⇔x3 = 18144/84= 
<gadget id="calculator">18144/84</gadget>
<output>216</output>
216   ⇔x3= 63   ⇔x = 6.   ∴ The numbers are 18, 24 and 42.   Answer 18, 24, 42
<result>C</result>
The ratio of three numbers is 3 : 4 : 7 and their product is 18144. The numbers are