Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

The radius of the hemisphere is 3 cm. The ratio of its volume to the total surface area is

Options:

01 : 03

02 : 01

01 : 01

02 : 03

Correct Answer:

02 : 03

Explanation:

The ratio of volume to the total surface area of the hemisphere:

⇒ \(\frac{2}{3}\)πr3 : 3πr2

⇒ \(\frac{2}{3}\) × π(27) : 3π(9)

⇒ 18 : 27

2 : 3