Question

If 20 notebooks cost of rupees 630, then the cost of 28 notebooks is:​

Answer 1

Answer:

cost of 20 notebooks = ₹630

cost of 1 notebook = ₹630/20

cost of 28 notebooks =(₹630/20) × 28

= ₹882

hope it helps you!!

Answer 2

Answer:

The cost of 28 notebooks is Rs.882

Step-by-step explanation:

According to the details provided in the above question,

The given data is cost of 20 notebooks is Rs.630

We have to find the cost of 28 notebook.

Here to get the cost of one note book we have to divide the cost of 20 notebook divided by 20,

Given, 20 notebook = Rs.630

Cost of 1 note book is,

$=\frac{630}{20}$

cancelling one zero from numerator and denominator we get,

$=\frac{63}{2}$

$=Rs31.5$

The cost of 1 note book is Rs.31.5

Now the cost of 28 notebook is,

$=31.5\times 28\\=Rs.882$

The cost of 28 notebooks is Rs.882