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Question
A metal pipe 3 metre long was found to weigh 7.6 kg. What would be the weight of the same kind of 7.8 m long pipe?
Solution
Weight of 3 m long pipe = 7.6 kg
Weight of 1 m long pipe = `7.6/3` kg
∴ Weight of 7.8 m long pipe = `7.6/3 xx 7.8` = 19.76 kg
Hence, the weight of 7.8 m long pipe is 19.76 kg.
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