The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base ?
Correct answer: D. None of these
- A. 1.4 m
- B. 2.8 m
- C. 14 m
- D. None of these
Explanation
Convert the capacity: 246.4 L = 0.2464 m³. Using V = πr²h, r² = 0.2464 m³ ÷ (4 m x 22/7) = 0.0196 m², so r = 0.14 m and diameter = 2 x 0.14 m = 0.28 m, which is not listed; 1.4 m is a likely decimal-place error.
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