A protractor is in the shape of a semicircle of diameter 28 cm. Taking π = 22/7, what is its perimeter?
Correct answer A. 72 cm
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Maths MCQs & Aptitude MCQs
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The largest possible circle is cut from a rectangular sheet 20 cm long and 14 cm wide. Taking π = 22/7, what area of the sheet is left over?
Correct answer A. 126 sq cm
A goat is tied with a 14 m rope to one corner of a rectangular field measuring 30 m by 20 m. Taking π = 22/7, over what area of the field can it graze?
Correct answer D. 154 sq m
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The sides of a triangular plot are in the ratio 3 : 4 : 5 and its perimeter is 96 m. What is its area?
Correct answer C. 384 sq m
The height of an equilateral triangle is 9√3 cm. What is its area?
Correct answer A. 81√3 sq cm
Each side of a square plot is decreased by 15%. By what percentage does its area decrease?
Correct answer D. 27.75%
A square field has an area of 1764 sq m. What is the cost of fencing it at Rs. 35 per metre?
Correct answer D. Rs. 5,880
A triangular piece of land has sides of 9 m, 10 m and 17 m. What is its area?
Correct answer B. 36 sq m
The area of an equilateral triangle is 49√3 sq cm. What is its perimeter?
Correct answer D. 42 cm
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A circular flower bed has a radius of 21 cm. Taking π = 22/7, what is its area?
Correct answer A. 1,386 sq cm
The circumference of a circular pond is 88 m. Taking π = 22/7, what is the area of the pond?
Correct answer C. 616 sq m
A bicycle wheel has a diameter of 70 cm. Taking π = 22/7, how many complete revolutions will it make in covering 1.1 km?
Correct answer A. 500
A sector of a circle of radius 21 cm has a central angle of 60°. Taking π = 22/7, what is the area of the sector?
Correct answer B. 231 sq cm
A slice of pizza is a sector of a circle of radius 14 cm with a central angle of 45°. Taking π = 22/7, what is the perimeter of the slice?
Correct answer D. 39 cm
A sector of a circle of radius 12 cm has an arc length of 22 cm. What is the area of the sector?
Correct answer D. 132 sq cm
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A rectangular garden 40 m long and 25 m wide has a path 2.5 m wide running all round it on the outside. What is the area of the path?
Correct answer C. 350 sq m
A square lawn of side 50 m has a path 3 m wide running along its edges on the inside. What is the area of the path?
Correct answer D. 564 sq m
A rectangular plot measures 60 m by 40 m. A gravel path 3 m wide is built all round it on the outside. What is the cost of gravelling the path at Rs. 12 per square metre?
Correct answer C. Rs. 7,632
A rectangular field 80 m long and 50 m wide has two roads, each 4 m wide, running through the middle, one parallel to the length and the other parallel to the breadth. What is the cost of paving the roads at Rs. 15 per square metre?
Correct answer C. Rs. 7,560
A circular garden of radius 35 m is surrounded by a path 7 m wide on the outside. Taking π = 22/7, what is the area of the path?
Correct answer A. 1,694 sq m