22
(1) Take the difference of the two previous numbers in sequence (2) Add 4 to this difference. (3) Take the number from step #2 and add it to the previous number in the sequence. For example, to find the next number in the sequence: (1) 121 - 90 = 31 (2) 31 + 4 = 35 (3) 121 + 35 = 156
121
The sequence appears to be generated by describing the previous term. The first term "121" can be described as "one 1, one 2," leading to "212." The second term "212" is described as "two 1s, one 2," resulting in "221112." Then, "221112" is described as "two 2s, one 1, one 2," which gives "1211." Therefore, the next term in the sequence is 1211.
25 36 49 64 81 100 121 144
yes
121.
2121
The given number sequence is a series of perfect squares: 7^2, 8^2, 9^2, 10^2. Therefore, the next number in the sequence would be 11^2, which is 121.
49
144
61 81 101 121 141...you get were im coming from!
(1) Take the difference of the two previous numbers in sequence (2) Add 4 to this difference. (3) Take the number from step #2 and add it to the previous number in the sequence. For example, to find the next number in the sequence: (1) 121 - 90 = 31 (2) 31 + 4 = 35 (3) 121 + 35 = 156
169
121
289 because each consecutive prime number is squared.
121
One of my colleague's daughter asked the same question (it was a home work question to be solved for the Maths class). We could not find out the answer, and the next day the Maths teacher said that the book had been wrong (a mistake in the sequence).The sequence that was given was 142, 121, 110.But should have been: 132, 121, 110 (minus 11 for each of the next numbers).Perhaps this is not an answer, but when this girl was given the same question, it was actually a spelling mistake in the question (wrong number). So perhaps this is the case in this situation as well :)