A storekeeper sells a book at 15%gain.had he sold it for 18 nite he would have gained 18%. Find the cost price of the book
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Hey,sup!
Let the CP be x Rs.
Gain=15%.
SP= x(1+15/100)=115x/100.
Gain=18%.
SP=x(1+18/100)= 118x/100.
As per the question,
118x/100 - 115x/100 = 18.
=>(118x-115x)/100=18.
=>3x/100=18.
=>x=18/3 ×100.
=>x=6×100
=>x=600Rs.
So the cost price is 600Rs.
Hope it helps.
Let the CP be x Rs.
Gain=15%.
SP= x(1+15/100)=115x/100.
Gain=18%.
SP=x(1+18/100)= 118x/100.
As per the question,
118x/100 - 115x/100 = 18.
=>(118x-115x)/100=18.
=>3x/100=18.
=>x=18/3 ×100.
=>x=6×100
=>x=600Rs.
So the cost price is 600Rs.
Hope it helps.
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