Question

25 ; 24 ; 26 ; 25 ; 30 ; 33 ; 39 ; 60 ; ?
find the ? ​

Answer 1

Step-by-step explanation:

59 would be the answer or else 65,63,66

Answer 2

Step-by-step explanation:

Down vote

I see two sequences interwoven: an={24,33,51,...} and bn={30,39,...}

I'd continue them as

an===={24,24+9,33+18,51+27,78+36,...}24+9⋅{0,1,3,6,10,...}24+9⋅(n2){24,33,51,78,114,...}

and

bn===={30,30+9,39+18,57+27,...}30+9⋅{0,1,3,6,...}30+9⋅(n2){30,39,57,84,120,...}

The indexes should then be adapted to reproduce the intervowen sequence:

cn={24,30,33,39,51,57,78,84,114,120...}