**A. 81 : 121**

B. 9 : 11

C. 729 : 1331

D. 27 : 12

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# Mensuration

## The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?

**A. 23.57 cm**

B. 47.14 cm

C. 84.92 cm

D. 94.94 cm

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## There are two circles of different radii. The area of a square is 196 sq.cm, whose side is half the radius of the larger circle. The radius of the smaller circle is three-seventh that of the larger circle. What is the circumference of the smaller circle ?

A. 12 π cm

B. 16 π cm

**C. 24 π cm **

D. 32 π cm

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## The area of a square is equal to five times the area of a rectangle of dimensions 125 cm * 64 cm. What is the perimeter of the square?

A. 600 cm

B. 800 cm

C. 400 cm

D. 1000 cm

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## The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 5 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each?

A. Rs. 4800

B. Rs. 3600

C. Rs. 3560

**D. Rs. 4530**

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## The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 867 sq m, then what is the breadth of the rectangular plot?

A. 8.5 m

**B. 17 m**

C. 34 m

D. 51 m

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## An order was placed for the supply of a carper whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its parameter. Find the ratio of the areas of the carpets in both the cases.

A. 4 : 3

**B. 8 : 7**

C. 4 : 1

D. 6 : 5

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## The ratio of the length and the breadth of a rectangle is 4 : 3 and the area of the rectangle is 6912 sq cm. Find the ratio of the breadth and the area of the rectangle?

**A. 1 : 96**

B. 1 : 48

C. 1 : 84

D. 1 : 68

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