A) Rs. 52.00 (approx.)
B) Rs. 39.20 (approx.)
C) Rs. 35.20 (approx.)
D) Rs. 23.94 (approx.)
Correct Answer: D
Solution :
| Area of the curved surface \[=\pi rl\] |
| \[l=\sqrt{{{r}^{2}}+{{h}^{2}}}\] |
| \[=\sqrt{{{(32)}^{2}}+{{(60)}^{2}}}\] |
| \[=\sqrt{4624}=68\,\,\text{cm}\] |
| Area of the curved surface \[=\pi rl=\frac{22}{7}\times 32\times 68\] |
| \[\therefore \]Total cost of painting |
| \[=35\times \frac{22}{7}\times 32\times 68\times \frac{1}{10000}\] |
| = 23.94 (approx.) |
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