CAT Quantitative Ability Questions | CAT TIme, Speed, Distance and Work questions

CAT/1997

Question . 124

Boston is 4 hours ahead of Frankfurt and two hours behind India. X leaves Frankfurt at 06:00 pm on Friday and reaches Boston the next day. After waiting there for two hours, he leaves exactly at noon and reaches India at 01:00 am. On his return journey, he takes the same route as before, but halts at Boston for one hour less than his previous halt there. He then proceeds to Frankfurt.

What was X’s average speed for the entire journey?

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