If each side of a square is increased by 50% the ratio of the area of the resulting square to the area of the given square is__________?

A. 5:4
B. 9:4
C. 4:5
D. 4:9

Explanation:

Let original side be x metres, then area = x² Sq.m

New side =(150% of x)m = (150/100 × x)m =(3x/2)m

New area =(3x/2 x 3x/2)m² = 9x²/4 m²

Required ratio of area = 9x²/4 : x² = 9:4

Correct Answer: 9:4 ✔

Last Updated: February 07, 2020