Question

Fifteen post cards cost Rs 2.25. How many postcards can we buy in Rs 45?

step by step explain.​

Answer 1

Answer:

300

Step-by-step explanation:

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Fifteen postcards cost Rs. 2.25. What will be the cost of 36 postcards? How many postcards can we buy in Rs. 45

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Solution

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15 postcards costs =Rs. 2.25

1 postcard will cost =Rs.

15

2.25

=0.15

36 postcards will cost =Rs.0.15×36

=Rs 5.40

And

In Rs. 2.25 we can buy =15 postcards

In Rs. 1 we can buy =

2.25

15

postcards

In Rs. 45 we can buy =

2.25

15

×45 postcards

=300 postcards