Question

The cost of dozen eggs is $Rs30$. What will the cost of $15$ eggs ?

Answer 1

AS 1 dozen =12 quantities

cost of 12 eggs=Rs30

cost of 1 egg=RS$.\frac{30}{12}=\frac{5}{2}$

cost of 15 eggs$=Rs.\frac{5}{2}\times 15=Rs.37.5$