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Asked by Yogesh Last Modified
Answer 
Pooja R. Jain
Let's calculate the cost price (CP) and selling price (SP) to determine the gain or loss and the percentage.
Cost Price (CP): The shopkeeper purchased 200 bulbs for Rs. 10 each. CP=Number of bulbs×Cost per bulbCP=Number of bulbs×Cost per bulb CP=200×10CP=200×10 CP=Rs.2000CP=Rs.2000
Selling Price (SP): 5 bulbs were fused and thrown away. So, the shopkeeper sold 200−5=195200−5=195 bulbs at Rs. 12 each. SP=Number of bulbs sold×Selling price per bulbSP=Number of bulbs sold×Selling price per bulb SP=195×12SP=195×12 SP=Rs.2340SP=Rs.2340
Gain or Loss: Gain or Loss=SP−CPGain or Loss=SP−CP Gain or Loss=2340−2000Gain or Loss=2340−2000 Gain=Rs.340Gain=Rs.340
Gain Percentage: Gain Percentage=(GainCP)×100Gain Percentage=(CPGain)×100 Gain Percentage=()×100Gain Percentage=()×100 Gain Percentage=17%Gain Percentage=17%
Therefore, the shopkeeper gained 17% by selling the bulbs.
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