Question

1. A shopkeeper purchased 300 pens and sold one out of four pens at no profit and no loss. He sold
the remaining pens at a profit of 20%. What is his overall profit or loss per cent on the whole
transaction?
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Answer 1

Answer:

So there is profit of 15% on whole transaction

Step-by-step explanation:

Assume that price of the pen is X

Initial Cost = 300 * X = 300X

As per given equation,number of pens sold at no profit/loss = 300 *( 1/4) = 75

Remaining pens sold at 20% profit = (300–75) * (X+X*(0.2)) = 270X

Total Profit = (75X + 270X) - 300X = 45X

Profit Percentage = (profit/Initial Cost) * 100 = (45X/300X ) * 100 = 15

So there is profit of 15% on whole transaction