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Quantitative Aptitude
Divisibility Rule for 11
Show that n3–...
Question
Show that n3– n is divisible by 8, if n is an odd positive integ
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Q.
n
3
+
2
n
2
−
5
n
−
6
,
where n is any positive integer, is always divisible by
Q.
If m is an odd positive integer, then show that
m
2
−
1
is divisible by
8
.
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