If we observe the square numbers series, we can understand a pattern: 1,4,9,16,25. In other words, we have the following 1+3=4 4+5=9 9+7=16 16+9=25 In this pattern, we added 3,5,7 and 9 respectively to the previous number. In this way, to get the next numbers, we need to add 11,13,15,17 and 19 respectively to get the answer to previous number. 25+11=36 36+13=49 49+15=64 64+17=81 81+19=100 So, the five square numbers that follow 25 are 36, 49, 64, 81, 100. answer 36, 49, 64, 81, 100.
Any ratio equals 1:2 as long as you can divide the first number by itself to get 1 and the second number with the 1st number. Example 2:4 Divide the first number by 2 and you get 1 Divide the second number by 2 and you get 2 So the ratio equals 1:2
