Volume and Surface Area - Questions & Answers | Exam2Win

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1. The length of diagonal of a cube is (14 x ) cm. The volume of the cube is :

A. 2744 cm3

B. 2744 cm3

C. 588 cm3

D. 3528 cm3

Explanation: ANSWER : 2744 cm3

2. In a shower, 5 cm of rain falls. The volume of water that falls on 2 hectares of ground, is :

A. 100 m3

B. 1000 m3

C. 10 m3

D. 10000 m3

Explanation: ANSWER : 1000 m3

3. Three metal cubes of sides 5 cm, 4 cm and 3 cm are melted and recast into a new cube. The length of the edge of this cube is :

A. 6 cm

B. 8 cm

C. 10 cm

D. none of these

Explanation: ANSWER : 6 cm

4. If each edge of a cube is increased by 50% the percentage increase in surface area is :

A. 50%

B. 100%

C. 125%

D. 75%

Explanation: ANSWER : 125%

5. If each side of a cube is doubled, then its volume :

A. is doubled

B. becomes 4 times

C. becomes 6 times

D. becomes 8 times

Explanation: ANSWER : becomes 8 times