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A hollow iron pipe, which is 14 cm Long and has its external diameter 10 cm. If the thickness of the pipe 2 cm and iron weighs 10g/cm³, find the weight of

the pipe? A. 3960 gm B. 3050 gm C. 3160 gm D. 3950 gm


H=14cm,R=5cm r=4cm
volume of pillar =  \pi (R²-r²)h
=396 cm³
weight of the iron=volume ×weightg/cm³
ans A.
0 0 0
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