Volume & Surface Area Questions and Answers
Practice ModeShowing 10 of 99 questions
Q21
A tank 4 m long, 2.5 m wide and 1.5 m wide is dug in a field 31 m long and 10 m wide. If the earth dug out is evenly sperad out is evenly spread out over the field, the rise in level of the field is :
Answer: Option C
Q22
If each edgeoff a cube is doubled, then its volume :
Answer: Option D
Q23
If each edge of a cube is increased by 25 %, then the percentage increase in its surface area is :
Answer: Option D
Q24
Two cubes have their volumes in the ratio 8 : 27. The ratio of their surface area is :
Answer: Option C
Q25
A cube of side 6 cm is cut into a number of cubes, each of side 2 cm. The number of cubes will be :
Answer: Option D
Q26
If the areas of three adjacent faces of a rectangular block are in the ratio of 2 : 3 : 4 and its volume is 9000 cu.cm; then the length of the shortest side is :
Answer: Option B
Q27
The percentage increase in the surface area of a cube when each side is doubled, is :
Answer: Option D
Q28
The radii of two cylinders are in the ratio of 2 : 3 and their heights are in the ratio 5 : 3. The ratio o their volumes is :
Answer: Option C
Q29
The number of coins 1.5 cm in diameter and 0.2 cm thick to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm, is :
Answer: Option B
Q30
A cylindrical vessel 60 cm in diameter is partially filled with water. A sphere 30 cm is diameter is dropped into it. The increse in the level of water in the vessel is :
Answer: Option D