Final answer:
The selling price per egg is approximately Rs. 0.53.
Step-by-step explanation:
To find the selling price per egg, we need to calculate the cost price per egg and then add the profit percentage to it.
1 gross = 144 eggs
Cost price per gross = Rs. 72
Cost price per egg = Rs. 72 / 144 = Rs. 0.50
Profit percentage = 6.25%
Profit per egg = cost price per egg * profit percentage = Rs. 0.50 * 0.0625 = Rs. 0.03125
Selling price per egg = cost price per egg + profit per egg = Rs. 0.50 + Rs. 0.03125 = Rs. 0.53125
Therefore, the selling price per egg is approximately Rs. 0.53.