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Maths Puzzle
Numerical Ability
Sequence and Series
Q. What is the next number of the following sequence
1, 11, 21, 1211, 1231, 131221,....
Read Solution (Total 7)
-
- 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
- 10 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)
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