In-how-many-ways-can-committee-of-5-be-formed-from-a-group-of-11-people-consisting-of-4-teachers-and-7-students-if-there-is-no-restriction-in-the-selection-

Question Number 142618 by iloveisrael last updated on 03/Jun/21

I n h o w m a n y w a y s c a n c o m m i t t e e

o f 5 b e f o r m e d f r o m a g r o u p

o f 11 p e o p l e c o n s i s t i n g o f 4 t e a c h e r s

a n d 7 s t u d e n t s i f t h e r e i s n o

r e s t r i c t i o n i n t h e s e l e c t i o n ?

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Commented by som(math1967) last updated on 03/Jun/21

{\overset{11}{C}}_{5} = \frac{11 \times 10 \times 9 \times 8 \times 7 \times 6!}{5 \times 4 \times 3 \times 2 \times 6!} = 22 \times 3 \times 7 = 462

Commented by otchereabdullai@gmail.com last updated on 04/Jun/21

nice