Kenny ran for 10*2=<<10*2=20>>20 hours.

Kenny practiced the trumpet for 20*2=<<20*2=40>>40 hours.

# Answer

40
Question:
Kenny played 10 hours of basketball last week. He ran for twice as long as he played basketball, and he practiced on the trumpet for twice as long as he ran. How many hours did Kenny practice on the trumpet last week?
Answer:
Let's think step by step.

user
40
Kenny played 10 hours of basketball last week. He ran for twice as long as he played basketball, and he practiced on the trumpet for twice as long as he ran. How many hours did Kenny practice on the trumpet last week?
train