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प्रश्न
A woman reduces her weight in the ratio 7 : 5. What does her weight become if originally it was 91 kg.
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उत्तर
Ratio between the original weight and reduced weight = 7 : 5
Let original weight = 7x
then reduced weight = 5x
If original weight = 91 kg
then reduced weight
= `(91 xx 5x)/(7x)`
= 65 kg.
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