Question

The cost of 1 book is rs 8.What is the cost of 8 books

Answer 1

Answer:

64

Step-by-step explanation:

1=8

8=?

by cross multiplied 8*8=64

Answer 2

The cost of 1 book is rs 8. Then the cost of 8 books is Rs 64

Step-by-step explanation:

Cost of 1 book is Rs 8

cost of 8 books is $\textrm{Rs} 8\times 8 =\textrm{Rs} 64$

So the cost of 8 books is $\textrm{Rs} 64$