gmatophobia wrote:
Bunuel wrote:
If Jamal drove 240 kilometers, what was his average speed for the 240 kilometers that he drove?
(1) Jamal's average speed for the first 160 kilometers that he drove was 64 kilometers per hour.
(2) Jamal's average speed for the last 160 kilometers that he drove was 64 kilometers perhour.
(1) Jamal's average speed for the first 160 kilometers that he drove was 64 kilometers per hour.
(2) Jamal's average speed for the last 160 kilometers that he drove was 64 kilometers perhour.
A good one!
Statements 1 and Statement 2 are individually not sufficient to answer the question as we do not know the speed Jamal drove in the remaining 80 kilometers. Hence, we can easily eliminate options A, B, and D. The answer will either be C or it will beE.
Combined
(1) Jamal's average speed for the first 160 kilometers that he drove was 64 kilometers per hour.
(2) Jamal's average speed for the last 160 kilometers that he drove was 64 kilometers perhour.
Case1 : Jamal drove at a uniform speed of 64 km/hr throughout his journey
One of the possibilities can be that Jamal drove at a uniform speed of 64 km/hr. In this case, the average speed of his entire journey will be
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Statistics : Posted by elalemsanane • on Aug 05, 2023 12:00 pm • Replies 5 • Views 5465