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Byju's Answer
Standard VIII
Mathematics
Letters for Digits
If n C12=n C5...
Question
If
n
C
12
=
n
C
5
, find the value of n.
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Solution
We have,
n
C
12
=
n
C
5
⇒
n
=
12
+
5
=
17
[∵
n
C
x
=
n
C
y
⇒
x
=
y
or,
n
=
x
+
y
]
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