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How long did it take Betty to drive nonstop on a trip from [#permalink]
28 Feb 2011, 11:25

How long did it take Betty to drive nonstop on a trip from her home to Denver,Colorado? 1) If Betty`s average speed for the trip had been 1,5 times as fast, the trip would have taken 2 hours 2) Betty`s average speed for the trip was 50 miles per hour

Re: How long did it take [#permalink]
28 Feb 2011, 13:18

Madelaine88 wrote:

How long did it take Betty to drive nonstop on a trip from her home to Denver,Colorado? 1) If Betty`s average speed for the trip had been 1,5 times as fast, the trip would have taken 2 hours 2) Betty`s average speed for the trip was 50 miles per hour

IMO A From (1), \(d/s\) -\(d/1.5s\) = \(2\) \(d\) = \(6s\) We know d = t*s Hence \(t\) =\(6\) So, Sufficient from (2) . s= 50 So, Insufficient _________________

Argument : If you love long trips, you love the GMAT. Conclusion : GMAT is long journey.

What does the author assume ? Assumption : A long journey is a long trip.

The Importance of Financial Regulation : Before immersing in the technical details of valuing stocks, bonds, derivatives and companies, I always told my students that the financial system is...

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