but suzy doesn’t drive?!?!?!?!? (and is she even conscientious?) (A)

hello. i’m studying for my GRE test and taking online quizzes and looking up on google how to do any problem i don’t know how to do.  i figure that is practice right?  this came up:

Being a conscientious driver, Suzy stayed at or below the speed limit while traveling down the interstate.  Overall, she went an average rate of 65 mph and it took her 10 hours to complete her journey.  If she traveled for 6 of her 10 hours at 70 mph, what constant speed did she go for the remaining 4 hours to obtain the overall 65 mph average?

take a stab at it!

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3 Responses to but suzy doesn’t drive?!?!?!?!? (and is she even conscientious?) (A)

  1. coach says:

    57.5

    do i win cookiez?

  2. James says:

    I get 75.5 too…but you can never verify that i did it on my own and didn’t peek at coach’s paper.

  3. James says:

    umm…i mean 57.5

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