ABC26GN4884 · Volume and Surface Area

Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: 2008 · Marks: · Difficulty:

Find the cost of a cylinder of radius 14 m and height 3.5 m when the cost of its metal is ₹ 50 per cubic metre.
(a)₹ 100208
(b)₹ 107800
(c)₹ 10800
(d)₹ 109800
Answer
Answer (as printed): B
Explanation
Volume $=\pi r^{2} h=\left(\frac{22}{7} \times 14 \times 14 \times 3.5\right) \mathrm{m}^{3}=2156 \mathrm{m}^{3}$. ∴ Cost of the cylinder $=₹(2156 \times 50)=₹ 107800$.

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