Question : The curved surface area of the sphere is 154 cm². Find the volume of the sphere (rounded off to one digit after decimal).

Option 1: 156.9 cm³

Option 2: 179.7 cm³

Option 3: 161.1 cm³

Option 4: 147.8 cm³

Question : If the surface area of a sphere is $1386 \mathrm{~cm}^2$, then its volume is:
(Take $\pi=\frac{22}{7}$ )

Option 1: 8451 cm³

Option 2: 4851 cm³

Option 3: 5418 cm³

Option 4: 4581 cm³

Question : If the diameter of a sphere is 3.5 cm, then what is the total surface area of the sphere?

Option 1: 45.75 cm²

Option 2: 42.6 cm²

Option 3: 38.5 cm²

Option 4: 34.25 cm²

Question : If the volume of a sphere is 24,416.64 cm³, find its surface area (take $\pi$ = 3.14) correct to two places of decimal.

Option 1: 3069.55 cm²

Option 2: 4069.44 cm²

Option 3: 5096.66 cm²

Option 4: 6069.67 cm²

Question : The volume of a cylinder is 4312 cm³. Its curved surface area is one-third of its total surface area. Its curved surface area (in cm²) is:
(Take $\pi=\frac{22}{7}$ )

Option 1: 572 cm²

Option 2: 528 cm²

Option 3: 660 cm²

Option 4: 616 cm²