Question

1) The volume of the cylinder is 550 cubic cm. If its
radius is 5 cm then its height is___cm.
(A)9 (B) 12 (C)7 (D) 14

2) Volume of two sphere are 1372 and 500 cm3 then the ratio of radii____
(A) 7:5 B) 4:3 C) 5:7 D)49 : 25

3) The curved surface area of sphere is 1256 cm2. Find the radius of sphere (π = 3.14)
A) 1 (B) 10 (C) 100 (D) 314​

Answer 1

1 , B) 12

2, A) 7:5

3, D) 314