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Byju's Answer
Standard XII
Chemistry
Central Atom and Ligands
Find the numb...
Question
Find the number of combinations of
50
things
46
at a time.
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Solution
n
C
r
=
n
!
r
!
(
n
−
r
)
!
Selecting
46
out of
50
is
50
C
46
=
50
!
46
!
4
!
=
50
×
49
×
48
×
47
24
=
2
,
30
,
300
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