Directions : Read the following passage carefully and answer the questions…
2022
Directions : Read the following passage carefully and answer the questions given below.
A hollow cylinder A of radius 14cm is full with water and a solid cylinder B with radius 7cm is put inside the hollow cylinder, then the remaining quantity of water is 9240 cm³. The height of both the cylinder is same.
Find the height of the cylinder (in cm).
Answer: C. 20 — The remaining water volume is the difference between the volumes of the two cylinders: pi*h*(14^2 - 7^2) = 9240. This gives pi*h*147 = 9240. Using pi = 22/7,…
- A.
18
- B.
12
- C.
20
- D.
25
- E.
10
Attempted by 3 students.
Show answer & explanation
Correct answer: C
The remaining water volume is the difference between the volumes of the two cylinders: pi*h*(14^2 - 7^2) = 9240. This gives pi*h*147 = 9240. Using pi = 22/7, h = 20 cm.
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