Two weeks are 14 days, so Nathan played for 3 * 14 = <<14*3=42>>42 hours.

Tobias played for 7 days, so he played a total of 5 * 7 = <<5*7=35>>35 hours.

Nathan and Tobias played together for 42 + 35 = <<42+35=77>>77 hours.

# Answer

77
<|im_start|>system
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<|im_start|>user
Nathan plays amateur baseball. He played for 3 hours for two weeks, every day. His friend Tobias played for 5 hours every day, but only for one week. How many hours did Nathan and Tobias play in total?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
77
Nathan plays amateur baseball. He played for 3 hours for two weeks, every day. His friend Tobias played for 5 hours every day, but only for one week. How many hours did Nathan and Tobias play in total?
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