Question

next series- 121,110,120,111,?​

Answer 1

$\huge\bf\green{Solution⤵}$

✔ The next series is 119.

$121,110,120,111, 119\\ 121 - 1 = 120 \\ 110 + 1 = 111 \\ 120 - 1 = 119$

$\large\colorbox{orange}{Hope\:this\:helps\:you.✌️}$

Answer 2

✔ The next series is 119.

121 ,110 ,120 ,111 ,119

121-1=120

110+1=111

120-1=119

Hope it will helps you ❤️