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प्रश्न
What number: When decreased by 50% becomes 50?
उत्तर
Let the number be = 100
Decrease = 50% = 50
∴ Decreased number = 100 - 50 = 50
If decreased number is 50, then original number = 100
and if decreased number is 50, then original number `= (100xx50)/50 = 100`
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