Question

if 4.5 metre of a uniform rod weight 17.1 kg what is the weight of 12 m of such a rod

Answer 1

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

Answer 2

The weight of 12 m of such a rod is 45.6 km

Step-by-step explanation:

Weight of 4.5 m rod = 17.1 kg

Weight of 1 m rod = $\frac{17.1}{4.5} kg$

Weight of 12 m rod = $\frac{17.1}{4.5} \times 12$

                              = $45.6kg$

Hence the weight of 12 m of such a rod is 45.6 km

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