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प्रश्न
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Sales Tax and the amount of the bill.
उत्तर
Sales tax and the amount of the bill are directly proportional to each other.
E.g. Let bill amount = ₹ 1000
Sales tax = 10%
Then, sales tax = `10/100 xx 1000` = ₹ 100
But if, bill amount = 2000
Sales tax = 10%
Then, sales tax = `10/100 xx 2000`
= 10 × 20
= ₹ 200
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