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प्रश्न
If the cost of 7 kg of onions is ₹ 84 find the following :
The cost of 3 kg of onions
उत्तर
Cost of 1 kg of onions = `84/7`
Cost of 3 kg of onions = `84/7 xx 3` = 36
Cost of 3 kg onions = 36
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