Question

If the cost of 20 books is rupees 180 ,how much will is book cost?

Answer 1

Answer:

For this sum,

you should use unitary method.

do the following:

number of books=20

cost of 20 books=Rs 180

so, cost of one book= 180/20

=9

therefore, cost of 1 book is 9Rs

Answer 2

Answer:

9 rupees

Step-by-step explanation:

Cost of 20 book=180

Cost of 1 book=180/20=9