485
Explanation
Notice that the difference between consecutive terms is (in order): 4; 12 (=4*3); 36 (=4*32); 108 (=4*33). The difference between the last term given and the next term will be 4*34=324. 161+324=485.
You can also observe (or mathematically determine) that the terms are given by:
2*3k-1, for whole numbers k (i.e., 2*30-1=1, 2*31-1=5, 2*32-1=17, ..., 2*35-1=2*243-1=486-1=485).
As the sequence is going up, you multiply the previous number by 3 and add 2. Therefore, the next number in the sequence is equal to 161 x 3 + 2 = 425.
Try: 161+324 = 485 would seem to fit the pattern
The next number is 485.
485
To get the number to complete the sequence, multiply the first number to 3 and then add 2 to get the next number. Given 1, 5, 17, 53, 161 ____Solution:1 x 3 (+2) = 55 x 3 (+2) = 1753 x 3 (+2) = 161161 x 3 (+2) = 485Therefore, the number to complete the sequence is 485.
485
335
485
As the sequence is going up, you multiply the previous number by 3 and add 2. Therefore, the next number in the sequence is equal to 161 x 3 + 2 = 425.
Try: 161+324 = 485 would seem to fit the pattern
1 + (4) = 5 5 + (4x3) = 17 17 + (4x3x3) = 53 53 + (4x3x3x3) = 161 161 + (4x3x3x3x3) = ?
379, but it does not complete the sequence which is infinite.
The next number is 485.
485
To get the number to complete the sequence, multiply the first number to 3 and then add 2 to get the next number. Given 1, 5, 17, 53, 161 ____Solution:1 x 3 (+2) = 55 x 3 (+2) = 1753 x 3 (+2) = 161161 x 3 (+2) = 485Therefore, the number to complete the sequence is 485.
485 is not necessarily the end of the sequence, but it is the next number after those listed.
485 and 1457. The next number in the sequence is 2 more than treble the previous number.