The area of sector of a circle whose radius is 12 metro and whose angle at the center is 42° is?
Answer: C
42/360 * 22/7 * 12 * 12 = 52.8 m⊃2;
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Anil has a rectangular farm and he builds a road along the border of the farm from outside. The road is 5m wide and has an area of 600 m2. What is ratio of breadth and length of the farm?
Answer: D
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What will be increase in area of an equilateral triangle if its side is increased by 20%?
Answer: C
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A rectangular parking space is marked out by painting three of its sides. If the length of the unpainted sides is 9 feet, and the sum of the length of the two painted sides is 37 feet, then what is the area of the parking space in square feet?
Answer: C
Clearly,we have l = 9 and l+2b = 37,or b = 14
∴∴Area = (l×b) = (9×14)sq.ft = 126 sq.ft
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A courtyard is 25 meter long and 16 meter board is to be paved with bricks of dimensions 20 cm by 10 cm. The total number of bricks required is
Answer: A
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John, Joni and Janardan start running at same time from the same point on a circular track of 70 meters radius. John and Joni run clockwise and Janardan runs
counter clockwise. If John meets Janardan every 66 seconds and Joni meets Janardan every 110 seconds, how frequently(in seconds) will John meet Joni?
Answer: C
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One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?
Answer: A
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A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m⊃2;?
Answer: C
π (15⊃2; - 13⊃2;) = 176
176 * 1/4 = Rs.44
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The diagonals of a rhombus are 15 cm and 20 cm. Find its area?
Answer: C
1/2 * 15 * 20 = 150
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The sides of a triangle are in the ratio 5: 12: 13 and its perimeter is 300 m, its area is?
Answer: A
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