Question

1 , 11, 21 , 1211 , 111221 , 312211, solve the series

Answer 1

In this series 1 we spell it 1 so, get  11 now, 11 we spell it two one so we gets 21,now 21 we spell it one 2 and one 1 so we gets 21 as common and two one that is 1211