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प्रश्न
Now you show how Abdu will use these stone pieces to weigh —
3 kg of firewood.
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उत्तर
By keeping broken stone of 5 kg on left pan and broken stone of 2 kg on right pan with firewood.
The difference of weight = 5 - 2 = 3 kg, which will balance the two pan of balance by firewood.
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