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Option 3 : Vacuum
- Light travels faster in a vacuum as there are no dust particles in vacuum.
- The speed of light in a vacuum is 299,792 kilometers per second and it is always constant.
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Eight friends A, B, C, D, E, F, G and H have their train from Mumbai to Goa scheduled on eight different months January, March, April, June, July, August, November and December but not necessarily in the same order.
D travels between August and December. At least 4 person travels between D and B. F travels in a month of 30 days but not in April. Neither C nor H travel in July or August. H does not travel before June.
H travels in which of the following month?
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