Question

17,29,39,31,25,? give answer quickly

Answer 1

21 is answer

29-17=12

39-29=10

39-31=8

31-25=6

Every sub. Is less by 2 than previous

Hence, 25-x=4

-x=4-25

- x= -21

X=21

21 is next term

Answer 2

21 is answer

29-17=12

39-29=10

39-31=8

31-25=6

Every sub. Is less by 2 than previous

Hence, 25-x=4

-x=4-25

- x= -21

X=21

21 is next term