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11.

The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by :

A) 35%

B) 42%

C) 62%

D) 82%

12.

If the area of a square increases by 69%, then the side of the square increases by :

A) 13%

B) 30%

C) 39%

D) 69%

13.

If each side of a square is increased by 50%, the ratio of the area of the resulting square to that of the given square is :

A) 4 : 5

B) 5:4

C) 4:9

D) 9:4

14.

If the ratio of areas of two squares is 225 : 256, then the ratio of their perimeters is :

A) 225 : 256

B) 256 : 225

C) 15 : 16

D) 16 : 15

15.

The ratio of the area of a square to that of the square drawn on its diagonal, is :

A) 1:2

B) 2:3

C) 3:4

D) 4:5

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