Question

If the cost of a dozen of soaps is $Rs.153.80$. what will be the cost of $15$ such soaps?

Answer 1

STEP 1 : Finding the cost of 1 soap

We know that $1$ dozen = $12$

Cost of a dozen ($12$) soaps = $Rs153.80$

Cost of $1$ soap = $Rs.\frac{153.80}{12}$

STEP 2 : Finding the cost of 15 such soaps

Cost of $15$ such soaps = $\frac{153.80}{12}\times 15=Rs.192.25$

Hence, the cost of $15$ such soaps is $Rs.192.25$