Question

If the cost of 8 bags $ 986 find the cost of 40 bags ?

Answer 1

The cost of 8 bags is =986$
the cost of 40 bags =x$
bags-------price
8------------986
40----------x
cross multiplication
8x=986×40
8x=39440
x=39440/8
x=4930
the cost of 40 bags is 4930$

Answer 2

Cost of 8 bags=$986
So cost of one bag=986/8=123.25 $
Cost of 40 bags =123.25x40=4930$