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The ratio of the areas of two squares is...

The ratio of the areas of two squares is 1:4 .if the area of the first is 9 sq. units . The area of the first square is ____ ( in sq. units)

A

16

B

36

C

64

D

49

Text Solution

Verified by Experts

The correct Answer is:
B
1 : 4 = 9 :x
` 1/4 = 9/x`
`x = 9 xx 4`
x = 36 sq. units
Hence, the correct option is (b)
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