Grade 11Algebra
the number of ways in which candidates a1,a2,a3,..,a10 can be ranked if a1 is always above a2
1 Answer
Koushal Bhat
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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algebra
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