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प्रश्न
A bookseller gives 8% discount on the printed price. What does a customer pay for a book priced at Rs.150?
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उत्तर
Given, M.P. of a book = Rs.150
Discount = 8%
`"S.P."/"M.P." = 1 - "discount"/(100)`
⇒ `"S.P."/(150) = 1 - (8)/(100)`
⇒ S.P. = `(92)/(100)` x Rs.150
= Rs.138
∴ Amount paid by the customer for the book = Rs.138.
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