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प्रश्न
The price of a washing machine inclusive of sale tax is Rs. 13,530. If the sale tax is 10% find its basic price.
योग
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उत्तर
Let its basic price be ₹ x
Sales tax = 10% of x = `(10x)/(100)`
∴ Price of the washing machine
= `x + (10x)/(100)`
= ₹ `(110x)/(100)`
∴ `(110x)/(100)` = ₹ 13,530
∴ x = `(13,350 xx 100)/(110)`
= ₹ 12,300.
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