If you use half of the oil in a bucket of 5-liter "Luhua" peanut oil every time, how much peanut oil is left in the bucket after the fifth time?

If you use half of the oil in a bucket of 5-liter "Luhua" peanut oil every time, how much peanut oil is left in the bucket after the fifth time?

1 × (1-1 / 2) ^ 5 power
=1/32