If 4.5m of a uniform rod weighs 17.1 kg, what is the weight of 12m of such a rod?
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4.5 m rod weight = 17.1 kg
1 m rod weight = 17.1/4.5=3.8 kg
12 m rod weight = 3.8 ×12=45.6 kg
1 m rod weight = 17.1/4.5=3.8 kg
12 m rod weight = 3.8 ×12=45.6 kg
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