a train travels 45.1/3km every hour for the first 3.1/2 hours after leaving a stations. after that it travels 50.1/2 km every hour for the next 2.1/2 hours. what distance does the train travels during the six hours?
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45.1/3× 3.1/2 + 50.1/2× 2.1/2
=136/3. 7/2.+ 101/2× 5/2
=952/6 + 505/2
=( 952+ 1515)/6
=411.16
=136/3. 7/2.+ 101/2× 5/2
=952/6 + 505/2
=( 952+ 1515)/6
=411.16
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