A) 200
B) 150
C) 250
D) 300
Correct Answer: C
Solution :
(c): no. of corns = \[\frac{\pi {{R}^{2}}H}{\pi {{r}^{2}}h}=\frac{{{(3.5)}^{2}}\times 16}{{{(1.4)}^{2}}\times 0.4}\] \[={{\left( \frac{5}{2} \right)}^{2}}\times 40\] \[=\frac{25}{4}\times 40=250.\]
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