how many iron rods each of length 14m and the diameter 4cm can be made out of 0.88cm
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volume of iron = 0.88m^3
(h) of rod 14 m (r) of rod = 4/2 = 2 cm = 2/100 m
volume of 1 rod = πr^2h = 22/7×2/100×2/100×14
req no of rods = volume of iron / volume of 1 rod
=volume of iron / volume of 1 rod
hence ans is 50
for the calculation refer to the attachment
hope helped
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