Q8. The radius and height of a cylinder are in ratio 5 : 7 and its volume is 550 cm3. Find its radius?
|A. 5 cm||B. 6 cm|
|C. 4 cm||D. 3 cm|
Q9. Into circular drum of radius 4.2 m and height 3.5 m, how many full bags of wheat can be emptied if the space required for wheat in each bag is 2.1 cubic meters?
|A. 80||B. 85|
|C. 92||D. 90|
Q10. The curved surface area of a cone is 4070 cm2 and its diameter is 70 cm. What is its slant height?
|A. 35 cm||B. 37 cm|
|C. 48 cm||D. 50 cm|
Q11. How many meters of cloth 5 m wide will be required to make a conical tent, the radius of whose base is 7 m and whose height is 74 m?
|A. 100 m||B. 120 m|
|C. 150 m||D. 110 m|