Question

A piece of metal pipe is 35 cm long. The inner diameter of cross section is 14 cm and outer diameter is 16 cm. If the weight of metal is 10gm per cm, what is the weight of the piece of pipe?​

Answer 1

Answer:

Vol of metal used=22(8^2-7^2) 35/7

=22(64-49)5=110*15=1650cu CM

Weight of metal pr CM cube is 10gm

Weight of metal 1650cm

cube=1650*10=16500gm=16.500kg