Meena buys eggs at Random. 7 for 20 and sells them at The 7.20 per dozen.If the profit is Random 30, the number of eggs bought by her is :
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Cost of 20 egg is Rs. 7
So, cost of 60 eggs= 21
Means, cost of 5 dozen eggs = 21
Cost of 1 dozen = 4.2
Let no. Of dozen of eggs = x
So, total COST Price = 4.2x
Total selling price = 7.2x
Profit= SP-CP
30 = 7.2x - 4.2x
30 = 3.0x, 3x
x = 30/3
x = 10
That means total no. Of eggs is 10 dozen means 10x12 =120 eggs
I hope you will happy
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