A cylindrical tank has a capacity of 3080 m3. What is the depth of the…

Mathematics JAMB 2001

A cylindrical tank has a capacity of 3080 m3. What is the depth of the tank if the diameter of its base is 14 m?

(Take pi = 22/7)

  • 23 m
  • 25 m
  • 20 m checkmark
  • 22 m

The correct answer is: C

Explanation

Capacity = 3080 m3
Base diameter = 14 m, thus radius = 7 m.

Volume of cylinder = capacity of cylinder = πr2h. = 3080
22/7 x 72 x h = 3080
h = 3080/(22x7)
h = 20 m

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