There are two 36's, so the odd one out is 36.
35: the other numbers are all squares of integers. 2^2 = 4, 3^2 = 9, 4^2 = 16, 5^2 = 25, 6^2 != 35. The last number in the sequence should be 36.
The difference between each one is an odd number 1 (add 3) 4 (add 5) 9 (add 7) 16 (add 9) 25(add 11) 36 etc etc
From the first term subtract 19 to get the second, and continue to subtract the next smaller odd number to proceed down the line:100 (-19) 81 (-17) 64 (-15) 49 (-13) 36 (-11) 25 (-9) 16
4,9,16,25,36,49,64,81,100,121
There are two 36's, so the odd one out is 36.
64 is a multiple of 16, and 81 is a multiple of 27, so I'd say that 36 is the odd one out.
25 is odd
49, 36, 25 and 64 are all squares of whole numbers. 64 = 82 49 = 72 36 = 62 25 = 52 The square root of 72 is not a whole number, but approximately 8.48. Thus 72 is the "odd one out".
These numbers between 1 and 40 have an odd number of factors: 4, 9, 16, 25, 36.
27 is not a perfect square
Square numbers 16, 25, 36, 49, 64, 81, 100
add 3,5,7,9and then to 25 add 11, adding odd numbers onto the last . 1+3=4, 4+5=9, 9+7=16, 16+9=25, 25+11=36 and so on
Write the numbers in order: 2 16 18 25 36 48 48 then median is one in middle: 25
Square numbers like 1, 4, 9, 16, 25, 36, 49, 64, 81, 100
1, 4, 9, 16, 25, 36, 49, 64, 81, 100
101