There are 20 members on a football squad. In electing a captain and a vice-captain, how many different outcomes of the election are possible ?

A 20
B 39
C 190
D 380

Correct Answer: 190

Required Number = 20C18                                  = 20!18!(20-2)!                                  = 20!18! 2!                                   = 20×19×18!18!×2                                   = 190 (Ans)
Bissoy MCQ
#গণিত #Dutch-Bangla Bank Ltd #Dutch-Bangla Bank Ltd - Officer - 2004

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