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How long did it take Jason to drive nonstop on a trip...

This topic has 1 expert reply and 0 member replies

How long did it take Jason to drive nonstop on a trip...

Post Sat Nov 04, 2017 7:19 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    How long did it take Jason to drive nonstop pn a trip from his home to Glendale?

    (1) Glendale is 400 miles from jason's home.
    (2) Jason's average speed for the trip was 50 miles per hour.

    The OA is C.

    I don't understand why that is the correct answer. Please, can any expert assist me with this DS question? Thanks.

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    Post Thu Nov 09, 2017 11:27 am
    Hi swerve,

    We're asked for how long it took Jason to drive nonstop from his home to Glendale. This question is based on the Distance Formula (Distance = Rate x Time)

    (1) Glendale is 400 miles from Jason's home.

    Fact 1 gives us the distance, but we still need Jason's rate to determine the time it took him to travel that distance.
    Fact 1 is INSUFFICIENT

    2) Jason's average speed for the trip was 50 miles per hour.

    Fact 2 gives us the rate, but we still need Jason's distance to determine the time it took him to travel that distance.
    Fact 2 is INSUFFICIENT

    Combined, we know the distance (400 miles) and the rate (50 miles/hour), so we can figure out the time to travel that distance (in this case, 8 hours)
    Combined, SUFFICIENT

    Final Answer: C

    GMAT assassins aren't born, they're made,
    Rich

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