A) Rs 520
B) Rs 524
C) Rs 528
D) Rs 532
Correct Answer: C
Solution :
\[l=\sqrt{{{h}^{2}}+{{r}^{2}}}\] = \[\sqrt{{{16}^{2}}+{{12}^{2}}}=\sqrt{400}=20cm\] Curved surface area = \[\pi rl\] \[\frac{22}{7}\times 12\times 20\] Cost of painting \[\frac{22}{7}\times 12\times 20\times 0.70=\mathbf{Rs}\text{ }\mathbf{528}\]You need to login to perform this action.
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