Question

If 50 liters cost $325, how many liters would cost $130?

Answer 1

20 liters

Explanation:

50 liters cost $325 and the price should stay linear.

So we can solve like this...

325/50 = 6.50

One liter costs $6.50

130/6.50 = 20

20 liters would cost $130.

Answer 2

20 liters

Explanation:

$325 / 50L = $6.5 per L

$130 = ? L

To find this, divide 6.5 from 130

130 / 6.5 = 20L