A problem by Srinivas Laxmi
Level
pending
Find the Next number in the series...
1,11,21,1211,111221, ______________
The answer is 312211.
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1 solution
1, one times 1 that's 11,in the previous there r 2 one's therefore 21, in 21 one 2 and one one therefore 1211,and so on for the missing number check the previous number , it has 3 one's then 2 two's and 1 one's therefore 312211