Mathematics MCQs

Page No. 6

A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?


a12 cm

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b10 cm

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c18 cm

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d24 cm

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View Answer 10 cm

The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?


a1:2

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b1:4

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c1:8

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d2:1

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View Answer 1:8

The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area?


a1:2

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b1:4

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c2:1

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d4:1

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View Answer 1:4

The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes?


a3:4

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b9:16

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c1:8

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d4:3

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View Answer 1:8

Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes?


a1:64

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b1:8

✓


c1:4

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d8:1

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View Answer 1:8

The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is_________?


a3:8

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b9:16

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c9:32

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d9:64

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View Answer 9:32

The surface area of a cube is 726m2, its volume is?


a1300 m3

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b1331 m3

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c1452 m3

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d1542 m3

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View Answer 1331 m3

If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm2, then length breadth and height in cms, are respectively?


a90, 85, 60

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b85, 75, 60

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c90, 75, 70

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d90, 75,60

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View Answer 90, 75,60

A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?


a1200000

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b1000000

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c9800000

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d7500000

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View Answer 1000000

A metal sheet 27 cm long 8cm broad and 1 cm thick is melted into a cube. The difference between the surface areas of two solids is__________?


a284 cm2

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b286 cm2

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c296 cm2

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d300 cm2

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View Answer 286 cm2

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