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(HELP!! 10pts) a train travels 75km in 1hr, and then 68km in 2hrs. what is its average speed?

(HELP!! 10pts) a train travels 75km in 1hr, and then 68km in 2hrs. what is its average speed?
asked 213k views
5 votes
(HELP!! 10pts) a train travels 75km in 1hr, and then 68km in 2hrs. what is its average speed?

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User Rolznz
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8.3k points

1 Answer

3 votes
Average speed = total distance travelled ÷ total time taken

AS = (75km + 68km) ÷ (1hr + 2hr)

As = 143km ÷ 3hr

AS = 47.66667 km/hr

AS = 47.7 km/hr (3sf)
answered
User Contessa
by
8.0k points
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