Question

A shopkeeper purchased '$200$' bulbs for $₹10$each. However, $5$ bulbs were fused and put into scrap. The remaining were sold at $₹12$each. Find the gain or loss percent.

Answer 1

$\Rightarrow$The cost price of $200$ bulbs $=200\times 10$

$=₹2000$

$\Rightarrow$It is given that '$5$‘ bulbs got fused, So, the shopkeeper is left with ’$195$' bulbs, And he sells these for$₹12$ each.

$\Rightarrow$Selling Price of $195$ bulbs$=195\times 12$

$=₹2340$

Here, the Selling Price is greater than Cost Price, So the shopkeeper has gained profit.

$\Rightarrow \mathrm{Profit}=\mathrm{Selling}\mathrm{Price}-\mathrm{Cost}\mathrm{Price}$

$=2340-2000$

$=₹340$

$\Rightarrow \mathrm{Profit}\%=\frac{\mathrm{Profit}}{\mathrm{Cost}\mathrm{Price}}\times 100$

$=\frac{340}{2000}\times 100$

$=17\%$

Therefore, the shopkeeper gained a profit of '$17\%$'.