human
Two trains left the station at the same time, but took different tracks to their destination. One took a track that was 200 miles long and it went 50 MPH. The other took the other track that was 240 miles long and it went 80 MPH. How much time did it take them on average? (Round to the nearest integer.)
assistant
How many hours did the first train take? ** The first train took 5 hours because 200 / 40 = <<200/40=5>>5
How many hours did the second train take? ** The second train took 3 hours because because 240 / 80 = <<240/80=3>>3
How many hours did the first and second trains take? ** The total time was 8 hours because 5 + 3 = <<5+3=8>>8
How many hours did the first and second trains take on average? ** The average time was 4 hours because 8 / 2 = <<8/2=4>>4
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