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Other
Quantitative Aptitude
Pascal Triangle
Find the numb...
Question
Find the number of non-negative integral solution of
x
1
+
x
2
+
x
3
+
4
x
4
=
20
.
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Solution
x
1
+
x
2
+
x
3
+
x
4
=
20
20
+
7
−
1
=
26
C
7
−
1
=
C
6
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2
Similar questions
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Find the number of non-negative integral solutions of
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