Q. What is the next number of the following sequence

1, 11, 21, 1211, 1231, 131221,....

• Ans: 132231
  Tell the previous term in number (i.e no .of counts number ) in decreasing order
  
  1 here we have one 1 = 11
  11 here we have two 1 =21
  21 here we have to follow in decresing order
  i.e first one 2 one 1 = 1211
  
  131221 here we have one 3 two 2 three 1 = 132231
• 14 years agoHelpfull: Yes(22) No(10)
• 132231
  Solution :
  count followed by the digit. (one 3 => 13 two 2 => 22 three 1 =>31 => 132231) counting has to be done starting from biggest digit in previous number to smallest digit (here from 3 to 1)
  Sequence - 1 11 21 1211 1231 131221 132231 232221 134211 14131231 14231241 ...
• 14 years agoHelpfull: Yes(12) No(3)
• ans:131251
• 9 years agoHelpfull: Yes(6) No(3)
• 132231
  1 then
  1 time 1 so 11 then
  2 times 1 so 21 then
  1 time 2 and 1 time 1 so 1211 then
  1 time 2 and 3 times 1 so 1231 then
  1 time 3 and 1 time 2 and 2 time 1 so 131221 then
  1 time 3 and 2 times 2 and 3 times 1 so 132231
• 9 years agoHelpfull: Yes(6) No(3)
• ans: 132231
• 14 years agoHelpfull: Yes(4) No(8)
• I THINK HERE LOGIC IS THERE
  HERE WE CAN SEE
  11-12=10
  1211-1231=20
  and at the same as 10 increase
  131221+10=131251.
  
• 9 years agoHelpfull: Yes(1) No(2)
• 132231
  13=no of 3's is 1 and digit is
  so similarly rest all
• 9 years agoHelpfull: Yes(0) No(0)