Q.15. A man sold a radio set for rupees Rs. 250 and gained one-ninth of its cost price. Find:
(i) its cost price is
(ii) the profit percent.

Dear student,


i) SP= 250 Let the cost price be x Gain=19 of cost price=x9Gain=SP-CPx9= 250-xx9+x=250 10x9=250 10x=250×9 x=250×910x =25×9 x=225 Cost Price= 225ii) Profit %=ProfitCP×100 =25225 ×100 =11.12%

Regards

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