Volume and Surface Area Practice Question and Answer
8 Q: The ratio between the length and 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 min, then the area of the park in sq.m is –
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600a8bfa7cf1e8512ed33877- 115360false
- 230720false
- 3153600true
- 4307200false
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Answer : 3. "153600"
Q: The length of a rectangle is 6 cm more than its width and its perimeter is 100 cm. If the area of this rectangle is closest to the area of a circle, then what is the circumference of that circle?
1056 0602e05409f2a38430909bb32
602e05409f2a38430909bb32- 1110 cmfalse
- 2132 cmfalse
- 366 cmfalse
- 488 cmtrue
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Answer : 4. "88 cm"
Q: The lengths of the parallel sides of a trapezium are 51 cm and 21 cm, and that of each of the other two sides is 39 cm. what is the area ( in cm2) of the trapezium?
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605324a74999e13f2a6d1e1b- 11206false
- 21152false
- 31260false
- 41296true
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Answer : 4. "1296"
Q: A rectangular grass plot 80 m × 60 m has two roads, each 10 m wide, running in the middle of it; one parallel to length and the other parallel to breadth. Find the cost of gravelling the roads at ₹ 2 per m2.
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600e8d83178b94051cdf9081- 1₹ 2600true
- 2₹ 2680false
- 3₹ 2580false
- 4₹ 2500false
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Answer : 1. "₹ 2600 "
Q: Find the area of a quadrilateral whose diagonal is 10 cm. And the length of the length put on it is 6 cm and 5 cm respectively.
1050 05fe1ba524c864b4aa0de327f
5fe1ba524c864b4aa0de327f- 155 sq.cmtrue
- 240 sq.cmfalse
- 345 sq.cmfalse
- 490 sq.cmfalse
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Answer : 1. "55 sq.cm"
Q: The ratio of the volume of right circular cylinder and a right circular cone of the same base and height will be:
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5efeb1ddeb90be58c5960aa0- 11:3false
- 22:3false
- 33:2false
- 43:1true
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Answer : 4. "3:1"
Q: A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
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5f2e3cbf8c86ab1da00043b1- 1289false
- 2616false
- 3962.56false
- 4481.056true
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Answer : 4. "481.056"
Q: The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?
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610c66037588510aa0d4d2f3- 132 metresfalse
- 225 metresfalse
- 331 metresfalse
- 429 metrestrue
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