Question

12. 15 postcards cost * 11.25.
(i) What will be the cost of 36 postcards?
(ii) How many postcards can we buy for
225 ?​

Answer 1

1.......15 postcards cost = 11.25

1 postcard cost= 11.25÷15

=0.75

that why cost of 36 postcards= 36× 0.75

= 27

2nd answer... 225÷0.75=300 answer