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Rahul bought a sweater and saved rs. 20 when a discount of 25% was given. What was the price of the sweater before the discount?

Pls help
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If 25% of x =25
25/100 X x=25
     1/4 X x=25
              x=25 x 4
0 0 0

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Let, Before Discount amount be Rs 100,
and After Discount amount is Rs 75.

So, solving by Unitary Method,
Rs 25 is saved when the amount is Rs 100,
Re 1 is saved when the amount is Rs  \frac{100}{25}
Rs 25 is saved when the amount is Rs  \frac{100}{25}  × 20
                                                   = Rs 80
1 5 1
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