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प्रश्न
The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same quality?
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उत्तर
∵ The cost of 27 kg of iron = ₹ 1080
∴ Cost of 1 kg of iron = `1080/27` = ₹ 40
∴ The cost of 120 kg = 40 × 120 = ₹ 4800
Hence, the cost of 120 kg of iron is ₹ 4800.
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