Mr. Chaudhary makes a profit of 20% by selling a watch for Rs. 1260. a) what is the cost price of the watch? b) At what price should he sell it to make a profit of 30%?
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Step-by-step explanation:
a) Cost Price = 100×1260 ÷ 100+20%
= 126000÷120
= Rs.1050
b) number of price if he sell it to make a profit of 30% = 100+30%×1050÷100
= 130×1050÷100
= 136500÷100
=Rs.1365
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