Question

Find the cost of 16 books, if 11 books cost Rs.1870.​

Answer 1

Answer: CP of 16 notebook = Sp of 30 notebooks

To find Gain

SP = Rs 30

CP = RS 16

we use formula

Gain = SP - CP

Gain = 30 - 16

Gain = 14

then we find gain%

we use formula

gain% = Gain / Cost price * 100

gain%= 14 / 16 * 100

gain % = 87.5%

Step-by-step explanation:

Answer 2

Answer:

The sixteen cost of books is $Rs 2720$

Step-by-step explanation:

In accordance with the information provided in the question,

Given the data in question  if 11 books cost is  Rs.1870.​

We have find the value of cost of  16 books

If we need to calculate the cost of one book  we divide the whole sum by the total number of books  to get the cost of 1 books

We get,

$\frac{1870}{11} \\Rs170$

So one book cost is $Rs 170$

So multiply of 16 book into cost of one book

$16\times170\\Rs 2720$

Hence 16 books cost is $Rs 2720$