Question

Cost of 5 notebook is 45 rupees then the cost of 9 such notebook is?

Answer 1

Answer:

Cost of 5 notebook =₹45

Divide 45 by 5= 9

= Cost of 1 notebook is ₹9

so, cost of such 9 notebooks = 9 multiply by 9

=₹81

Answer 2

Answer:

The cost of 9 such notebook is Rs.81

Step-by-step explanation:

According to the details provided in the above question,

The given data is cost of 5 notebooks is Rs.45

We have to find the cost of one notebook.

Here to get the cost of one note book we have to divide the cost of 5 notebook divided by 5,

Given, 5 notebook = Rs.45

Cost of 1 note book is,

$=\frac{45}{5} \\=Rs.9$

The cost of 1 note book is Rs.9

So, the cost of 9 such notebook is,

$=9\times 9\\=Rs.81$

The cost of 9 such notebook is Rs.81