Mathematics MCQs

Page No. 3

The radius of a cylinder is 2 r units and height is 3 r units. Find the curved surface?


a18 πr2 sq units

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b3 πr2 sq units

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c12 πr2 sq units

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d6 πr2 sq units

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View Answer 12 πr2 sq units

The diameter of a cylindrical tin is 6cm and height is 5 cm. Find the volume of the cylinder?


a30 π cc

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b45 π cc

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c150 π cc

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d180 π cc

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View Answer 45 π cc

The radius of a cylindrical vessel is 7cm and height is 3cm. Find the whole surface of the cylinder?


a308 sq cm

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b220 sq cm

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c440 sq cm

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d132 sq cm

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View Answer 440 sq cm

Find the expenditure on digging a well 14m deep and of 3m diameter at Rs.15 per cubic meter?


aRs.1185

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bRs.1285

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cRs.1385

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dRs.1485

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View Answer Rs.1485

Two cylinders are of the same height. Their radii are in the ratio 1: 3. If the volume of the first cylinder is 40 cc. Find the volume of the second cylinder?


a360 cc

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b60 cc

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c300 cc

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d36 cc

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View Answer 360 cc

Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2.


a1:2

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b2:1

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c1:4

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d4:1

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View Answer 1:2

The radius of the base of cone is 3 cm and height is 4 cm. Find the volume of the cone?


a12 π cm3

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b6 π cm3

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c8 π cm3

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d10 π cm3

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View Answer 12 π cm3

The area of a base of a cone is 30 cm<sup>2</sup>. If the height of the cone is 6cm, find its volume?


a120 cm3

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b40 cm3

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c50 cm3

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d60 cm3

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View Answer 60 cm3

The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the cone.


a74 π cm2

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b36 π cm2

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c48 π cm2

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d24 π cm2

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View Answer 48 π cm2

The curved surface of a sphere is 64 π cm<sup>2</sup>. Find its radius?


a1 cm

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b2 cm

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c4 cm

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d3 cm

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View Answer 4 cm

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