A) 2640 cu cm
B) 2604 cu cm
C) 2460 cu cm
D) None of these
Correct Answer: A
Solution :
[a] \[\therefore \] Volume of pipe, V = \[\pi \,\,({{r}_{1}}^{2}-\,r_{2}^{2})\times h\] \[=\frac{22}{7}[{{(3.5)}^{2}}-\,{{(2.5)}^{2}}]\times 140\] \[=\frac{22}{7}(12.25-\,6.25)\times 140\] \[=22\times 6\times 20=2640\,\,cu\,cm\]
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