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प्रश्न
If x is 20% less than y, find : `"x"/("y" - "x")`
उत्तर
Let y = 100
then reduction = 20% = 20
then x = 100 - 20 = 80
`"x"/("y" - "x") = 80/(100 - 80) = 80/20 = 4/1 = 4` ...(Dividing by 20)
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