40 children are standing in a circle and one of them has a ring.. | UPSC | CSAT 2023 | Avishek Sinha

40 children are standing in a circle and one of them (say child-1) has a ring. The ring is passed clockwise.

Child-1 passes on the child-2, child-2 passes on to child-4, child-4 passes on to child- 7 and so on.

After how many such changes (including child-1) will the ring be in the hands of child-1 again?

(a) 14

(b) 15

(c) 16

(d) 17

UPSC CSAT 2023 solutions #csat #csat2023 #upsc #aptitude #reasoning
By Avishek Sinha



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