A metal pipe 3 metre long was found to weigh 7.6 kg what should be the weigh of the same kind of 7.8 m long pipe answer is 19.734
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Given weight of 3 m long pipe = 7.6 kg
Weight of 1 m long pipe = 7.6/3 kg
= 76/30kg
= 38/15 kg
Weight of 7.8 m long pipe =( 38/15 )× 7.8 kg
= 19.76
The required weight of the pipe = 19.76 kg
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