32=9
9-5=4
4+1=5
52=25
25-5=20
20+1=21
212=441
The sequence alternates between two patterns. The first pattern consists of the squares of integers: (3^2 = 9), (4^2 = 16) (not present), (5^2 = 25), and (6^2 = 36) (not present), suggesting the next square might be (6^2 = 36). The second pattern involves the numbers in between, specifically (4, 5, 20, 21), which seem to follow an increasing sequence. The next number in the series after 441 (which is (21^2)) could logically be 36, completing the alternating pattern.
22
Arithmetic
436 is the best choice for the next number in the sequence because:3x3=9-5=45x5=25-5=2021x21=441-5=436The Pattern: Square the term, then take away 5, add one, and square it again, and so on.
20, 21, 22, 24, 25
21 441 22 23 529 506
3 9 4 5 25 20 21 441 ?
That question is unanswerable.
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer. sqrt(441/625) = sqrt(441)/sqrt(625) = 21/25 = 0.84
22
Arithmetic
Factors of 1225: 1 5 7 25 35 49 175 245 1225 Factors of 441: 1 3 7 9 21 49 63 147 441 The GCF of 1225 and 441 is 49
436 is the best choice for the next number in the sequence because:3x3=9-5=45x5=25-5=2021x21=441-5=436The Pattern: Square the term, then take away 5, add one, and square it again, and so on.
20, 21, 22, 24, 25
25 is the next number that appears in that sequence.
20, 21, 22, 24, 25
.25 * 1 764 = 441