Question

if 36 bags cost rs 54,000,then what is the cost 15 bags at the same rate

Answer 1

let the cost one bag is x
$36x = 54000 \\ x = \frac{54000}{36} \\ x = 1500$
The cost of 1 bag is 1500
so 15 bag = 15
$15x \\ 15 \times 1500 \\ 22500$
Cost of 15 bags is 22500

Answer 2

Cost of 36 bags =54000
Cost of 1 bags = 54000/36
=1500
Cost of 15 bags =15× 1500
=rs22500