A shopkeeper purchased 120 pears for ₹15 each. However, 10 pears were rotten and thrown away. The remaining sold at ₹18 each. What will be the percentage profit?

A shopkeeper purchased 120 pears for ₹15 each.

Total cost price = $$120\times15$$ = ₹1800

However, 10 pears were rotten and thrown away. The remaining sold at ₹18 each.

Total selling price = $$(120-10)\times18$$

= $$110\times18$$

= 1980

profit percentage = $$\frac{(total\ selling\ price-total\ \cos t\ price)}{total\ \cos t\ price}\times100$$

= $$\frac{\left(1980\ -\ 1800\right)}{1800}\times\ 100$$

= $$\frac{180}{1800}\times100$$

= 10%