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


b10 cm


c18 cm


d24 cm


View Answer 10 cm

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


a1:2


b1:4


c1:8


d2:1


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


b1:4


c2:1


d4:1


View Answer 1:4

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


a3:4


b9:16


c1:8


d4:3


View Answer 1:8

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


a1:64


b1:8


c1:4


d8:1


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


b9:16


c9:32


d9:64


View Answer 9:32

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


a1300 m3


b1331 m3


c1452 m3


d1542 m3


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


b85, 75, 60


c90, 75, 70


d90, 75,60


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


b1000000


c9800000


d7500000


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


b286 cm2


c296 cm2


d300 cm2


View Answer 286 cm2

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