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the number of ways in which candidates a1,a2,a3,..,a10 can be ranked if a1 is always above a2

the number of ways in which candidates a1,a2,a3,..,a10 can be ranked if a1 is always above a2

Grade:11

1 Answers

Koushal Bhat
40 Points
6 years ago
FOR ALWAYS GETTING A 1 ABOVE A2 WE CAN START BY TAKING PAIR OF A1 AND A2;
A1....................................A2
A3........A1....................A2
A4...........A1................A2
SIMILARY 81 WAYS ARE THERE
 

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