• If 45 m of a uniform rod weighs 171 kg, then what will be the weight of 12 m of the same rod?
 A) 49 kg B) 42.5 kg C) 55 kg D) 45.6 kg

 D) 45.6 kg

Because, Weight of 45 m rod = 171 kg

Therefore, Weight of 1 m rod = $$\Large \frac{171}{45}$$ kg

Therefore, Weight of 12 mm rod = $$\Large \frac{171}{45} \times 12$$ = 45.6 kg

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