Question

15 postcards cost rupees 2.25 what would be the cost of 25 postcard? How many postcards can be in rupees 45 ?​

Answer 1

{1} 2.25 ÷ 15 = 0.45

so we multiply 0.45 to 25 for getting correct price

0.45 × 25 = 11.25

{2} 45 ÷ 0.45 = 100

so in 45 rupees we will get 100 post cards

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Answer 2

Answer:

300

Step-by-step explanation:

By unity method:

no. of in Rs. 25 postcards = 15

no. of in Rs. 1 postcard = 15/2.25

no. of in Rs. 45 postcards = 15/2.25×45

$\frac{15}{225} \times 45 \times 100$

$= 300$

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