The ratio between the length and the breadth of a rectangular park is 3:2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:
- (a) 15360
- (b) 153600
- (c) 30720
- (d) 307200
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An error of 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
- (a) 2%
- (b) 2.02%
- (c) 4%
- (d) 4.04%
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The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
- (a) 16 cm
- (b) 18 cm
- (c) 24 cm
- (d) Data inadequate
- (e) None of these
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The percentage increase in the area of a rectangle, if each of its sides is increased by 20%, is:
- (a) 40%
- (b) 42%
- (c) 44%
- (d) 46%
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A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and the rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
- (a) 2.91 m
- (b) 3 m
- (c) 5.82 m
- (d) None of these
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The diagonal of the floor of a rectangular closet is 7.1/2 feet. The shorter side of the closet is 4.1/2 feet. What is the area of the closet in square feet?
- (a) 5.1/4
- (b) 13.1/2
- (c) 27
- (d) 37
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A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
- (a) 10%
- (b) 10.08%
- (c) 20%
- (d) 28%
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A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
- (a) 20
- (b) 24
- (c) 30
- (d) 33
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The diagonal of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:
- (a) 9 cm
- (b) 18 cm
- (c) 20 cm
- (d) 41 cm
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What is the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
- (a) 814
- (b) 820
- (c) 840
- (d) 844
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