Pravinder sold a wacth at a loss of 5 if he has sold that watch for 27 more he would have gained 7 find the cost price of the watch
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Step-by-step explanation:
Let the cost price = Rs. x
1) Loss =5%
Selling price (Sp) = x(100-1%) /100
=x(100-5)/100
95x/100------(1)
2) Gain = 7%
Selling price (sp) = x(100+gain) /100
= x(100+7)/100
= 107x/100 --------(2)
But
(2) - (1) = 27
=> 107x/100 -95x/100 = 27
=> 12x/100 = 27
=> x= 27×100/12
After cancellation
=> x = 225
Therefore, Cost Price(Cp) = Rs. 225
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