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प्रश्न
Find the single discount (as a percent) equivalent to successive discounts of:
60% and 80%
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उत्तर
Successive discounts = 60% and 80%
Let M.P. = ₹100
∴ S.P. after two discounts,
`=₹(100(100-60)xx(100-80))/(100xx100)`
`=₹(100xx40xx20)/(100xx100)=₹8`
∴ Total discount = ₹100 − 8 = ₹92
∴ Single discount = 92%
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संबंधित प्रश्न
After offering discount of 10% on marked price, a customer gets total discount of 17 rupees. To find the cost price for the customer, fill in the following boxes with appropriate numbers and complete the activity.
Suppose, marked price of the item = 100 rupees
Therefore, for customer that item costs `square` - `square` = 90 rupees
Hence, when the discount is `square` then the selling price is `square` rupees.
Suppose when the discount is `square` rupees, the selling price is x rupees.
∴ `x/square=square/square`
∴ x = `(squarexxsquare)/square`
∴ x = `square`
∴ the customer will get the item for 153 rupees.
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