The selling price of 10pen is equal to 11 pens what is the gain price
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LET THE COST PRICE OF 1 PEN=X
THEN CP OF 11 PENS=11X=TOTAL COST
AND CP OF 10 PENS=10X=TOTAL SALE
HERE, LOSS=11X-10X=X
LOSS%=(X)(100)/11X=9.09%
THEN CP OF 11 PENS=11X=TOTAL COST
AND CP OF 10 PENS=10X=TOTAL SALE
HERE, LOSS=11X-10X=X
LOSS%=(X)(100)/11X=9.09%
drjjn:
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we dont now the answer please ask to somewone else
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