#### notes

**Example: ** Sohan bought a second hand refrigerator for Rs. 2,500, then spent Rs. 500 on its repairs and sold it for Rs. 3,300. Find his loss or gain per cent.**Solution:** Cost Price (CP) = Rs. 2500 + Rs. 500 (overhead expenses are added to give CP)

= Rs. 3000

Sale Price (SP) = Rs. 3300

As SP > CP, he made a profit = Rs. 3300 – Rs. 3000 = Rs. 300

His profit on Rs. 3,000, is Rs. 300. How much would be his profit on Rs.100?

Profit =`300 / 3000 xx 100 % = 30/3 % = 10 %`

`P% = P/(CP) xx 100%` |