Question

3,4,7,7,13,13,21,22,31,34 ?

Answer 1

3,4,7,7,13,13,21,22,31,34,37,37,43,43,51,52,---------
Hence
we are adding 30 in all of them

Answer 2

first 3+4=7 means third 7
second 4+3=7 means fourth 7
third 7+6=13 means fifth
fourth 7+6=13 means sixth
fifth 13+8=21 means seventh
sixth 13+9 =22 means eighth
seventh 21+10=31 means ninth
eighth 21+13=34 means. tenth
ninth 31+11=42 means eleventh
tenth 34+16=50 means twelve the