Question

$A$ vendor bought $4$ dozen eggs at $Rs.4$ each. $7$ of these were broken. At what price per dozen should he sell the remaining eggs so as to gain $10\%$ on the whole?

Answer 1

Dozen=12

price of each egg=Rs 4

Total price=4*12*4

=Rs 192

Seven were broken=4*7

=21

192-21=171

To gain 10% profit he should sell them at rate of

192*110/100=211.2

12*4=Total eggs=48

Present no. of eggs=48-7=41

To gain Rs 211.2 he should sell each egg at rate of 211.2/41=Rs 5.15