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प्रश्न
A man spends `3/8` of his money and 8 still has Rs. 720 left with him. How much money did he have at first?
उत्तर
Let a man has money = Rs. 1
Amount spent = `3/8` of Rs. 1 = Rs.`3/8`
Amount left = `1-3/8=(8-3)/8` = Rs.`5/8`
∴ `5/8` of his total money = Rs. 720
∴ Total money = Rs.`(720xx8)/5`
= Rs. 144 × 8 = Rs. 1152
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