Question
The number of sequences in which 7 players can throw a ball, so that the youngest player may not be the last is -.
Answer: Option C
X NOT YOUNGER_______ ↑
THE LAST BALL CAN BE THROWN BY ANY OF THE REMAINING 6 PLAYERS. THE FIRST 6 PLAYERS CAN THROW THE BALL IN ⁶P₆ WAYS.
THE REQUIRED NUMBER OF WAYS = 6(6!) = 4320
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X NOT YOUNGER_______ ↑
THE LAST BALL CAN BE THROWN BY ANY OF THE REMAINING 6 PLAYERS. THE FIRST 6 PLAYERS CAN THROW THE BALL IN ⁶P₆ WAYS.
THE REQUIRED NUMBER OF WAYS = 6(6!) = 4320
Was this answer helpful ?
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