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
Options:
A . 5:4
B . 9:4
C . 4:5
D . 4:9
Answer: Option B
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
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