Question

At the rate of 9 par dozen 12 dozzen eggs are bought and half dozen egg were broken the rest were sold at 12 per dozen what is gain or loss

Answer 1

One and half = 3/2

CP of 1 dozen eggs = 9

SP of 1 dozen egg = 12

total CP = 12 x 9 = 108

total SP = 12 x 3/2 = 18

SP < CP

so it is a loss

loss = 108 - 18 = 90

loss %

= 90 x 100/108

= 1000/12

= 83.3%