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28 February, 20:39

Sidney flew in an airplane five times during her vacation. The flights averaged 2 hours 28 minutes long The lengths of her first four flights were 2 hours 10 minutes, 3 hours 20 minutes, 1 hour 15 minutes, and 2 hours 40 minutes. What was the length of her last flight?

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  1. 1 March, 00:08
    0
    (everything broken down into minutes to solve)

    130+200+75+160+x/5=148

    *5

    565+x = 740

    -565

    x=175

    x=2 hours 55 minutes
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