Answer:
59.50 liters (fraction from)

Explanation:
30% of tank is filled. So, (100 - 30)% of tank is empty.
70% of tank is empty.
Capacity of the tank that is empty = 70% of 85 liters
In decimal form:
= 0.7 * 85
= 59.50 liters
In fraction form:
70% of 85 =

