One week is 7 days, so for one week, Mike trained for 7 * 2 = <<7*2=14>>14 hours.

The second week he began to train for 3 hours a day, so he trained for 7 * 3 = <<7*3=21>>21 hours.

That means Mike in total trained for 21 + 14 = <<21+14=35>>35 hours.

# Answer

35
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Mike began to train to play basketball every day for a tournament. One day he plays a maximum of 2 hours. After a week of training, he increased the maximum time to 3 hours. How many hours did Mike train during the first two weeks?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
35
Mike began to train to play basketball every day for a tournament. One day he plays a maximum of 2 hours. After a week of training, he increased the maximum time to 3 hours. How many hours did Mike train during the first two weeks?
train