Question

9. Fifteen cards cost 2.25. What will be the cost of 36 such cards? How many such
cards can we buy in 45 ?​

Answer 1

Step-by-step explanation:

The cost of 15 cards = Rs2.25

So,the cost of 1 card = 2.25 / 15

First convert Rs.2.25 into paise = 225 / 15

                                                    = 15 paise

So,1 card's cost = Ps.15

So,36 card's cost = 15 x 36

                             = Ps.540

So,we should convert 540 paise into rupees = Rs.5.40

So,the cost of 36 cards is Rs.5.40.

? cards cost = Rs.45

So,we should  divide Rs.45 by Ps.15 = 45 / 15

So,we should convert Rs.45 into paise = 4500 / 15

So,the number of cards that can be buyed by 45 rupees = 300 cards

So,300 cards can be buyed by  Rs.45

Hope it helps u.

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