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+1 vote
294 views
in Permutations and combinations by (163 points)
edited by

NUMERICAL TYPE

There are 20 students sitting in a circular arrangement at positions from 1 to 20 (in a clockwise direction). You have 250 gifts which you have decided to distribute to these students starting from the student sitting at position 4 ( i.e. first gift to student at position 4, then to the student at position 5 and so on). What will be the position of student who will get the 250th gift ?

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1 Answer

+2 votes
by (15.8k points)

Strange problem but okay...

The student at position 4 gets the first gift, and then the 21st, then the 41st, ... , and the 241st gift.  Therefore the. 250th gift will end up9 students later.

The position of the student who will get the 250th gift is position 13.

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