Area Problems
A circular disc of area 0.49 ? square meters, rolls down a length of 1.76 km. The number of revolutions it makes is?

300
400
4000
600

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Area Problems
A parallelogram has sides 60 m and 40 m and one of the diagonal is 80 m long. Then its area is?

320 sq. m
480 sq. m
600? 15 sq. m
450 ? 15 sq. m

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Area Problems
A room is half as long again as it is broad. The cost of carpeting the at Rs. 5 per sq.m is Rs. 270 and the cost of papering the four walls at Rs. 10 per sq.m is Rs. 1720. If a door and 2 windows occupy 8 sq. m, find the dimensions of the room.

l=5; b=18; H=18
l=6; b=18; H=15
b=5; l=6; H=18
b=6; l=18; H=6

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Area Problems
A person observed that he required 30 s time to cross a circular ground along its diameter than to cover it once along the boundary. If his speed was 30m/min, than the radius of the circular ground is (take ? = 22/7)

10.5 m
5.5 m
7.5 m
3.5 m

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Area Problems
The cross section of a canal is a trapezium in shape . If the canal is a trapezium in shape. If the canal is 10 meters wide at the top and 6 meters wide at bottom and the area of cross section is 640 sq. meters The depth of canal is?

384 meters
160 meters
80 meters
40 meters

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