1. How many cubes of 3cm edge can be cut out of a cube of 18cm edge ? 36 232 216 484 Answer: 216 Explanation: View Answer Discuss in Forum Report Question

 2. A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube ? 2 : 1 3 : 2 25 : 18 27 : 20 Answer: 25 : 18 Explanation: View Answer Discuss in Forum Report Question

 3. If each edge of a cube is increased by 50%, find the percentage increase in Its surface area ? 125% 150% 175% 110% Answer: 125% Explanation: View Answer Discuss in Forum Report Question

 4. If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area ? 41% 38% 33% 44% Answer: 38% Explanation: View Answer Discuss in Forum Report Question

 5. A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is ? Rs. 456 Rs. 458 Rs. 558 Rs. 568 Answer: Rs. 558 Explanation: View Answer Discuss in Forum Report Question

 6. If the radius of base and height of a cone are increased by 10%, find the percentage of increase of its volume ? 33.5% 33.1% 32.1% 53.1% Answer: 33.1% Explanation: View Answer Discuss in Forum Report Question

 7. The height of the wall is 6 times its width and lenght of the wall is 7 times its height .if the volume of the wall be 16128 cu.m.its width is ? 4m 5m 6m 7m Answer: 4m Explanation: View Answer Discuss in Forum Report Question

 8. What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm ? 344.35 sq.cm 462 sq.cm 498.35 sq.cm None of these Answer: 498.35 sq.cm Explanation: View Answer Discuss in Forum Report Question

 9. Find the length of the longest pole that can be placed in a room 12 m long 8m broad and 9m high ? 14m 15m 16m 17m Answer: 17m Explanation: View Answer Discuss in Forum Report Question

 10. Three solid cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find the surface area of the cube so formed ? 486 586 686 786 Answer: 486 Explanation: View Answer Discuss in Forum Report Question
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