Respuesta :

Answer:

One-fifth or 20%

Step-by-step explanation:

Answer:

40/100=4/10=2/5=40%=0.4

Step-by-step explanation:

4/10 hours which is 40% of the 10 hours and 10 hours is the maximum time and 4 hours is just 2/5 of that which 40/100=4/10=2/5=40%=0.4