A watch sold loss of 10percent. if it was sold for 140more, there would have been again 4per. what is costprice
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Let the cost price be x
10% loss is x-10%of x; x-10x/100
If sold for 140 more the price would be x-10x/100+140 which is a gain of 4%
Therefore x-10x/100+140= x+4x/100
x+140=x+4x/100+10x/100
140= 14x/100
x=1000
The cost price of watch is 1000
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