An artisan has 63Kg of metal of density 7000Kg/m3. He intends to use it to make a rectangular pipe with external dimension 12 cm by 15 cm and internal dimension 10 cm by 12 cm. calculate the length of the pipe in metres.

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1 Answer

anonymous · Answer 1 · 2021-08-04T10:40:26+0000

Density=m/v
Volume=m/d = ⁶³/₇₀₀₀=0.009m³=9000cm³
Volume = l x w x h= 12x15=180cm²
10x12=120cm²
180cm²-120cm²=60cm²
9000/60=150cm=1.5m