- 13
- 16
- 19
- 23
- c
-
Its called two side Series.
There is difference of 02 in Even and Odd Amounts.
8,13,10,15,12,17,14,….
8…10…12….14….
13….15….17….19
8,13,10,15,12,17,14,19,16,21,18,……
Its called two side Series.
There is difference of 02 in Even and Odd Amounts.
8,13,10,15,12,17,14,….
8…10…12….14….
13….15….17….19
8,13,10,15,12,17,14,19,16,21,18,……