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Numerical Ability
the eight number of the series is
3,11,31,69,131,....
Read Solution (Total 1)
-
- 1^3+2=3
2^3+3=11
3^3+4=31
4^3+5=69
5^3+6=131
Tn=n^3+(n+1)
eight term=8^3+9=521
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