Volume and Surface Area Practice Question and Answer
8 Q: The areas of the three adjacent faces of a cuboid are 32 cm2, 24 cm2 and 48cm2. What is the volume of the cuboid?
1170 06007ece9a41f3f2fa419b494
6007ece9a41f3f2fa419b494- 1288 cm3false
- 2256 cm3false
- 3128 cm3false
- 4192 cm3true
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Answer : 4. "192 cm3"
Q: The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
1166 05ffc32b923210f22f330340a
5ffc32b923210f22f330340a- 13 : 7false
- 27 : 3true
- 36 : 7false
- 47 : 6false
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Answer : 2. "7 : 3"
Q: The diameter of a roller is 84 cm and its length is 120 cm. It makes 500 complete revolutions to move once over to level a playground. Find the area of the playground.
1165 06005502ef5c84e7440610c9d
6005502ef5c84e7440610c9d- 11590 sq.cmfalse
- 21594 sq.cmfalse
- 31580 sq.cmfalse
- 41584 sq.cmtrue
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Answer : 4. "1584 sq.cm"
Q: What is the area of the largest triangle that can be fitted into a rectangle of length 'l' units and width 'w' units?
1154 05ffc31f1b78a0253d6ee6036
5ffc31f1b78a0253d6ee6036- 1$$ {lw\over3}$$false
- 2$$ {2lw\over3}$$false
- 3$$ {3lw\over3}$$false
- 4$$ {lw\over2}$$true
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Answer : 4. "$$ {lw\over2}$$"
Q: Three solid metallic sphere whose radii are 3cm, x cm and 18cm respectively, are melted and recast into a single solid sphere of diameter 38cm. Then find the total surface area of the sphere with radius x cm?
1151 06066d1b5ffdc341493f35c4d
6066d1b5ffdc341493f35c4d- 1300 πfalse
- 2400 πtrue
- 3100 πfalse
- 4200 πfalse
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Answer : 2. "400 π "
Q: A right circular cone of largest volume is cut out from a solid wooden hemisphere. The remaining material is what percentage of the volume of the original hemisphere?
1147 06051c634a01bc44789a9b503
6051c634a01bc44789a9b503- 150 %true
- 2$$ {33{1\over3}}{ \%}$$false
- 375 %false
- 4$$ {66{2\over3}}{ \%}$$false
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Answer : 1. "50 %"
Q: The radii of three concentric circles are in the ratio of 4 : 5 : 7. What is the ratio of the area between the two inner circles to that between the two outer circles?
1147 0609cd380e941dd6183d59933
609cd380e941dd6183d59933- 14 : 7false
- 23 : 8true
- 34 : 5false
- 45 : 9false
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Answer : 2. "3 : 8"
Q: What is the area of an equilateral triangle having altitude equal to $$5\sqrt{3}$$cm.
1143 05ef052c87cd71c794469687d
5ef052c87cd71c794469687d- 1$$25\sqrt{3}$$true
- 2$$45\sqrt{3}$$false
- 345false
- 440false
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