Mathematics MCQs

Page No. 4

Find the ratio between whole surfaces of a sphere and a hemisphere?


a3:4


b4:3


c3:1


d1:3


View Answer 4:3

How many shots of 1cm radius can be prepared from a sphere of 3cm radius?


a36


b64


c27


d16


View Answer 27

The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes?


a27:1


b1:27


c1:9


d9:1


View Answer 1:27

Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?


a21 cm


b19 cm


c32 cm


d18 cm


View Answer 18 cm

If the sides of a cube are in the ratio 4:3. What is the ratio of their diagonals?


a4:3


b16:9


c64:27


d3:4


View Answer 4:3

A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m<sup>2</sup>; find the length of the diagonal of the courtyard?


a25 m


b35 m


c45 m


d50 m


View Answer 50 m

How many meters of carpet 50cm, wide will be required to cover the floor of a room 30m * 20m?


a1000


b600


c2400


d1200


View Answer 1200

A room is 15m long, 4m broad and 3m height. Find the cost of white washing its four walls at 50p per m<sup>2</sup> ?


aRs.60


bRs.57


cRs.55


dRs.52


View Answer Rs.57

The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is________?


a4:3


b4:2


c4:4


d6: π


View Answer 6: π

The dimensions of an open box are 52, 40 and 29 cms. Its thickness is 2 cms. If 1 cm<sup>3</sup> of metal used in the box weighs 0.5 gms, the weight of the box is________?


a8.56 kg


b7.76 kg


c7.756 kg


d6.832 kg


View Answer 6.832 kg

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