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  1. The weight of a 13 m long iron rod is 23.4 kg. The weight of 6 m long of such rod wiil be ?
    1. 7.2 kg
    2. 12.4 kg
    3. 10.8 kg
    4. 18 kg
Correct Option: C

Less length, less weigth
From question, 13 : 6 : : 23.4 : W
⇒ 13 x W = 6 x 23.4
∴ W = (6 x 23.4) /13 = 10.8 kg


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