Answer:
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.
$325 / 50L = $6.5 per L
$130 = ? L
To find this, divide 6.5 from 130
130 / 6.5 = 20L
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