Question

a vendor bought 4 dozens 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

according to GST u should sell them on 6 rs

Answer 2

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

Hope this helps!