Q. The simplest form of $63 : 72$ is

31 158 Ratio, Proportion, and Variation Report Error

A

$15 : 21$

B

$21 : 24$

C

$21 : 27$

D

$24 : 27$

Solution:

The HCF of 63 and 72 is 3 .
By dividing each term by 3 , we get
$63 : 72 = 21 : 24$