36% of x = 81% of y. Find x : y.

Correct option is B

Given:

36% of x = 81% of y

Solution:

​$$\frac{36}{100} \times x = \frac{81}{100} \times y$$​​

36x = 81y

​$$\frac{x}{y} = \frac{81}{36} = \frac{9}{4}$$​​

Thus, the ratio x : y is 9 : 4.