Question

Q. 15 postcards cost ₹ 11.25.
⦁ What will be the cost of 36 postcards?
⦁ How many postcards can we buy for ₹ 225?

Answer 1

Answer:

You should first find the cost per postcard by the data given.

If 11.25 is the cost of 15 postcards, then you will get the cost of per postcard by simply dividing 11.25 by 15.

11.25/15=0.75

Now you can find the cost of 36 postcards by multiplying 0.75 and 36.

0.75*36=27.

Hope this answered your question.

Answer 2

Answer:

Hence, we can buy 36 postcards for Rs.27 and we can buy 300 postcards for Rs225.

Step-by-step explanation:

As per the data provided in the given question.

The given data is as follows,

The given is 15 postcards costs Rs.11.25

Here we have to find the cost of 36 postcards and how many postcards can we buy from Rs.225.

Here we will find the cost of one postcard.

$=\frac{11.25}{15}$

Dividing 11.25 by 15 we get,

$=0.75\;Rs$.

Now, we will find the cost of 36 postcards

$=0.75\times36$

Now, we will multiply 0.75 by 36 we get

$=27\;Rs$

Now the no. of postcards we can buy from Rs.225 is

$=\frac{225}{0.75}$

Dividing 225 by 0.75 we get,

$=300\;postcards$

Hence, we can buy 36 postcards for Rs.27 and we can buy 300 postcards for Rs225.