Question

A shopkeeper sold a watch at a profit of 12% . If he had sold it for 144 more he would have made a profit of 18% find cp of watch

Answer 1

Cp= 100/100+gain%*sp        100/100+12*144        100/112*144    Cp =128.57     Profit % = 18     100+18/100*128.57      118/100*128.57       151.71

Answer 2

The cost price of the watch is Rs.200.

Step-by-step explanation:

Given : A shopkeeper sold a watch at a profit of 12% . If he had sold it for 144 more he would have made a profit of 18%.

To find : The cost price of the watch ?

Let the cost price of the watch = x

A shopkeeper sold a watch at a profit of 12%.

The price is $p=x+\frac{12}{100}\times x=1.12x$

He sell the article for Rs. 12 more

The Selling Price is $SP=1.12x+12$

According to the question,

$18=\frac{1.12x+12-x}{x}\times100$

$18=\frac{0.12x+12}{x}\times100$

$0.18x=0.12x+12$

$0.18x-0.12x=12$

$0.06x=12$

$x=\frac{12}{0.06}$

$x=200$

The cost price of the watch is Rs.200.

#Learn more

A man sold an article at a loss of 20 % . If he sell the article for 12 rupees more he would have gain 10% .The cost price of article is :

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