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Question
A shopkeeper purchased 1000 notebooks at Rs.240 a score. If he sells the notebooks at.15 each, find his profit or loss percent.
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Solution
One score = 20 notebooks
C.P. of 20 notebooks = Rs.240
C.P. od 1 notebook
= Rs.240/20
= Rs.12
∴ C.P. of 1000 notebooks
= Rs.12 x 1000
= Rs.12000
S.P. of 1 notebook = Rs.15
∴ S.P. of 1000 notebooks
= Rs.15 x 1000
= Rs.15000
∵ S.P. > C.P.
Profit
= S.P. - C.P.
= Rs.(15000 - 12000)
= Rs.15000
Profit %
= `"Profit"/"C.P." xx 100`
= `(3000)/(12000) xx 100`
= 25%
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