Six persons A, B, C, D, E and F are standing in a row. C and D are standing close to each other alongside E.
Six persons A, B, C, D, E and F are standing in a row. C and D are standing close to each other alongside E. B is standing beside A only. A is fourth from F. Who are standing on the extremes?
(a) A and F (b) B and D (c) B and F (d) None of the above
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(c) C, D, E are together.
Also, A and B are together.
Possible arrangements,
B A C D E or C D E A B
Now, since A is fourth from F,
F must lie on the extreme end.
Thus, B and F are on the extreme positions.
BACDEF or FCDEAB
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