Question

Find out missing term, 45,9,13,17,21,_?..

Answer 1

Awesome tough puzzle......Answer: 25.....Now the logic is insane but it was the only answer i could come up with since u didnt give options.......Now: 1st no: 45 We add the last digit 5(only here since ) to with the 1st digit of the series that is 4 Add:4+5= 9 Then, the next no. Is 9 We add 9+4=13 Then, next no. Is 17 We add 13+4=17 Then, it is 21 We add 17 +4=21 Similarly, we will add 21+4 Hence it is 25...the answer