Latest CTS Aptitude Question SOLUTION: 1 11 21 1211 111221 ??????

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(#M40153110) CTS question Keep an EYE

1
11
21
1211
111221
??????

Asked In CTS shuvam paul (8 years ago)

Solved Aditi Bhardwaj Read Solution (12)

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Read Solution (12) :

Aditi Bhardwaj  (8 years ago) Best Solution

It's actually quite simple After starting the sequence with 1, each term in the sequence consists of groups of two numbers based on the previous term - the first being the quantity and the second specifying which digit.

Example: the first term is 1, which has "one 1" in it, therefore 11.
11 has "two 1's" in it, therefore 21.
21 has "one 2 and one 1" in it and therefore 1211.

Is this solution Helpfull? Yes (18) | No (2)  

minku  (8 years ago)

1
11
111 as 21
1211
1112111 as 111221
11112211 as 312211
ans 312211

Is this solution Helpfull? Yes (11) | No (1)  

sravani  (8 years ago)

initially 1 then 11 which is above 1 is described as one 1 it follows like that and ans is 312211 above question mark we have three 1's in it two 2's int and finally one 1.so the answer for above question is .......312211

Is this solution Helpfull? Yes (10) | No (1)  

shuvam paul  (8 years ago)

312211
3 no of1
2 no of 2
1 no of 1

Is this solution Helpfull? Yes (3) | No   

samyu  (8 years ago)

312211-"3 1's ,2 2's ,1 1's"

Is this solution Helpfull? Yes (2) | No   

Balam sahithya  (8 years ago)

1
11
21
1211
111221
312211

Is this solution Helpfull? Yes (1) | No (2)  

hanu  (7 years ago)

three ones
two twos
one one
312211

Is this solution Helpfull? Yes (1) | No   

satya sairam  (8 years ago)

13221
Example: the first term is 1, which has "one 1" in it, therefore 11.
11 has "two 1's" in it, therefore 21.
21 has "one 2 and one 1" in it and therefore 1211.

Is this solution Helpfull? Yes | No (1)  

Pavithra  (8 years ago)

ans : "3 1's" "2 2's" "1 1's" -----> 312211

Is this solution Helpfull? Yes | No   

saiveena  (8 years ago)

the first term is 1, which has "one 1" in it, therefore 11.
11 has "two 1's" in it, therefore 21.
21 has "one 2 and one 1" in it and therefore 1211.
ans: 312211

Is this solution Helpfull? Yes | No   

Bablu patel  (8 years ago)

there is a series 11211211 row wise
212111

Is this solution Helpfull? Yes | No (1)  

KARTHIK  (7 years ago)

223431, ..

Is this solution Helpfull? Yes | No (1)  

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