Answer:
After 4 hours the container left with 20 gallons of water.
Explanation:
The container has 320 gallons of water initially.
It leaks half of its water every hour.
So, after 1 hour the container has
= 160 gallons
After 2 hours the container has
=80 gallons
After 3 hours the container has
= 40 gallons
After 4 hours the container has
=20 gallons.
So, after 4 hours the container left with 20 gallons of water.