Question

a shopkeeper purchased 200 bulbs for rs 10 each however 5 bulbs were fused and put them into scrap the remaining were sold at rs 12 each find the gain or loss percent

Answer 1

HERE IS YOUR ANSWER

Cost price of 200 bulbs = Rs 200*10=Rs 2000
5 bulbs are fused.Hence,number of bulbs left= 200-5= 195
These were sold at Rs 12 each.
The SP of 195 bulbs = Rs 195*12 = Rs 2340
He obviously made a profit (as SP greater than CP).
Profit = ₹ 2340 - ₹2000 = ₹ 340
On ₹2000,the profit is ₹340.How much profit is made on ₹100?
PROFIT= 340/2000 * 100= 17%.

HOPES THIS HELPS YOU........

Answer 2

$<u>Answer :</u>$$<b><i>$

Number of bulbs purchased at Rs. 10 = 200

Purchase price = 200 × 10 = Rs. 2000

If 5 bulbs were defective, remaining bulbs = 195

Sale price = 12

Sale price of 195 bulbs = 195×12 = Rs. 2340

Profit = sale price – purchase price

= 2340 – 2000

= Rs. 340

$\sf\implies\dfrac{340}{2000}×100$

= 17%

∴ The gain percent is 17%