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

Answer:

fifteen cards costs re.2.25.so the cost of one card is 2.25/15=0.15,so the cost of 36 cards=0.15×36=5.4Rs.

Answer 2

given : 15 cards cost = 2.5 ruppe

1 card cost = 2.5÷15

= 0.15 ruppe

36 cards cost = 0.15×36

= 5.4 ruppe

in 45 ruppe = 45÷0.15

= 300 cards