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Q.

A rectangular piece of paper of dimension 4 cm × 3 cm was cut from a rectangular sheet of paper of dimensions 10 cm × 6 cm. Find the ratio of the areas of the two rectangles.

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a

2 : 3

b

4 : 1

c

5 : 1

d

4 : 5

answer is C.

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Detailed Solution

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Given, length of sheet of paper = 10 cm

breadth of sheet of paper = 6 cm

Area = l x b = 10 x 6 = 60 cm2

Now, length of smaller paper = 4 cm

breadth of smaller paper = 3 cm

Area = 4 x 3 = 12 cm2

Ratio of areas of two rectangles = 60 cm2 : 12 cm2 = 5 : 1

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