
A train stops at exactly six intermediate stations  A, B, C, D, E and F  in that order, between its originating station and destination station. At each of the intermediate stations, twice as many people get in as those that get down. The number of people getting down at the intermediate stations are all prime numbers, one each between 0 and 10, 10 and 20 and so on upto between 50 and 60, in the order of the stations given above. The difference between the number of people getting in at any two consecutive intermediate stations is at least 20. The total number of passengers getting down in all the intermediate stations together is an even number. Also no person gets in and gets down (or vice versa) at the same station.
Q. Which of the following cannot be the number of people getting down at any intermediate station? a) 47 b) 3 c) 17 d) 23
