The radius of a circular cylinder is the same as that of a sphere. Their volumes are equal. The height of the cylinder is________?

Related Mcqs:

1. A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of the cone is h. If the total volume of the solid is three times the volume of the cone then the height of the cylinder is________?

   A. 2h
   B. 4h
   C. 2h/3
   D. 3h/2

2. A cylinder and a cone have a same height and same radius of the base. The ratio between the volumes of the cylinder and cone is__________?

   A. 1:3
   B. 3:1
   C. 1:2
   D. 2:1

3. A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is_________?

   A. 3: 5
   B. 2: 5
   C. 3: 1
   D. 1: 3

4. If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius, then surface area of each ball (in cm²) is________?

   A. 100π
   B. 7π
   C. 60π
   D. 50π

5. The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is________?

   A. 4:3
   B. 4:2
   C. 4:4
   D. 6: π

6. Surface area of a sphere is 2464 cm2. If its radius is doubled, then the surface area of _________?the new sphere will be

   A. 4920 cm2
   B. 4727 cm2
   C. 9856 cm2
   D. 19712 cm2

7. Two cylinders are of the same height. Their radii are in the ratio 1: 3. If the volume of the first cylinder is 40 cc. Find the volume of the second cylinder?

   A. 360 cc
   B. 60 cc
   C. 300 cc
   D. 36 cc

8. How many shots of 1cm radius can be prepared from a sphere of 3cm radius?

   A. 36
   B. 64
   C. 27
   D. 16

9. The average height of 35 boys in a class was calculated as 180cm. It has later found that the height of one of the boys in the class was wrongly written as 166 cm whereas his actual height was 106 cm. Find the actual average height of the boys in the class (Round off your answer to two decimal places)?

   A. 179.29 cm
   B. 178.29 cm
   C. 179.38 cm
   D. 178.39 cm

10. The average height of 50 pupils in a class is 150 cm. Five of them whose height is 146 cm, leave the class and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is __________ .

    A. 149
    B. 151
    C. 152
    D. 153