5 : 125 :: 6 : ? MCQ with Answer and Explanation

Explanation:
Pattern n³+1: 1³+1=2, 2³+1=9, 3³+1=28, 4³+1=65, 5³+1=126, 6³+1=217. All fit. No odd. Wait, all follow. Perhaps 2=1³+1,9=2³+1 yes. Maybe different series. For odd, perhaps one that does not fit a different pattern.

Explanation:
Word: C O M M U N I C A T I O N S. Interchange pairs: O C M M N U C I T A O I S N. From right: N S I O A T I C U N M M C O. 10th from right is U.

Explanation:
The relation is n^3 + n. 6^3 + 6 = 216 + 6 = 222; 8^3 + 8 = 512 + 8 = 520.