Question

Kishan Lal buys a certain quantity of eggs to resell them at a profit of 10% but loses 10% of the eggs due
to transit damage. By how much should he mark up the S.P. (from the C.P.) of the eggs in order to retain
a 10% profit?
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Answer 1

Let the quantity of eggs be x and the cost price of eggs be Rs.y.

Krishna Lal loses 10% of the eggs so he is left with 90% of the eggs.

The c.p of eggs with him is

⇒ 100-10 × y = 0.9y

100

To retain a profit of 10% for the price he bought the eggs, he should sell them at

⇒ 100 + 10 × y = Rs. 1.1y

100

So, he should mark them up by

⇒ 1.1 - 0.9 × 100 = 22.2

0.9