A dealer sold a watch at a profit of 12%.If he had sod it for Rs288 more,he would have made a profit of 18%.Find the cost price of the watch
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let the cp be x.
as we no that cp=sp-p
and sp=cp+p.
here cp=x
therefore,p%=p/cp*100
so
x+12%of x=sp
but if he sold for rs 288 more his gainould increase to 18%
so
x+12%of x+288=18%of x ...............................................1
112x/100+288=118x/100
118x/100-112x/100=288
6x/100=288
6x=28800
x=28800/6
x=4800 ans
as we no that cp=sp-p
and sp=cp+p.
here cp=x
therefore,p%=p/cp*100
so
x+12%of x=sp
but if he sold for rs 288 more his gainould increase to 18%
so
x+12%of x+288=18%of x ...............................................1
112x/100+288=118x/100
118x/100-112x/100=288
6x/100=288
6x=28800
x=28800/6
x=4800 ans
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