6. A shopkeeper allows 10% discount and still gains 8%. What is the cost price of a book which is marked at
rupees 480
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Answer:
M.P = Rs. 500 Discount = 10%
∴ S.P. = Rs.500-10% of Rs.500=90% of Rs.500=
100
90
×Rs.500=Rs.450
Profit = 20% C.P.=Rs.(
120
450×100
)=Rs.375
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