A person purchase an item and sold it at a loss of 15
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cp-cost price
sp-selling price
initially
cp=100%
sp=90% of cp
new cp=80% of cp
new sp=90% of cp + 55 = 140% (80% of cp)
take cp as x
(90x/100)+55 = 140/100 * (80x/100)
solving this
=> x= cp= Rs. 250
sp-selling price
initially
cp=100%
sp=90% of cp
new cp=80% of cp
new sp=90% of cp + 55 = 140% (80% of cp)
take cp as x
(90x/100)+55 = 140/100 * (80x/100)
solving this
=> x= cp= Rs. 250
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