Explanation to GMAT Question of the Day(18th September - TopicsExpress



          

Explanation to GMAT Question of the Day(18th September 2014): Considering statement (1) alone: The car travelled the first 200 km in 2.5 hrs. We dont know the rest of the distance. INSUFFICIENT Considering statement (2) alone: If the cars average speed had been 20 km/h greater than it was, it would have travelled the 400 km in 1 hr less than it did. Let the cars average speed be S. From the given statement: (S + 20)(T - 1) = 400 = ST where T is the time take to cover the 400 km at a speed of S. We have 1 equation and 1 variable. We can answer the question. SUFFICIENT The answer is (B). Congratulations to Harry Do, Tracy Ho, Bidhan Sikder, Annas E Ahmad, Naresh Buxani, Kirti Singh Chouhan, and Ankit Rai on getting the correct answer. Veritas Prep GMAT
Posted on: Fri, 19 Sep 2014 04:22:42 +0000

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