Shima has $\frac{4}{5}$th of a tank of fuel in his car. He uses $\frac{1}{10}$th fraction of a tank per day. How many days will his fuel last?

Shima has $\frac{4}{5}$th of a tank of fuel in his car. He uses $\frac{1}{10}$th fraction of a tank per day. How many days will his fuel last?

• 2 days (Incorrect)
• 6 days (Incorrect)
• 9 days (Incorrect)
• 8 days (Correct)