a man bought 40 dozen eggs at Rs.6 per dozen out of these40 eggs were found to be broken . he sold the remaining at 60 paise per egg, find his gain or loss percent.

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Solution

$We know that, 1 dozen eggs = 12 eggs Now, CP of 1 dozen eggs = Rs 6 So, CP of 12 eggs = Rs 6 Now, CP of 1 egg = Re (\frac{6}{12}) = Re 0.50 Now, CP of 40 dozen eggs or 480 eggs = Rs (0.50 \times 480) = Rs 240 Now, 40 eggs were broken . Now, he sold 440 eggs . SP of 1 egg = Re 0.60 SP of 440 eggs = Rs (0.60 \times 440) = Rs 264 Profit = SP - CP = 264 - 240 = Rs 24 Now, profit % = [\frac{Profit}{CP} \times 100] % = [\frac{24}{240} \times 100] % = 10 %$

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