9.9 + 11 = 20.9/2 = 10.45
The number 99 is halfway.
(95 + 99)/2 = 97
40% of a number is 110, what is the number
57
99/110 = 9/10
77, 88, 99, 110.
The GCF is 11.
One way to approach this is to look at the difference between 99 and 110, which is 11. The greatest common factor of two numbers cannot be larger than the difference between the two numbers and must be a factor of the difference. Since both 99 and 110 are divisible by 11, the greatest common factor is 11.
110% of 90 = 99
99
99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114 (including 99 and 114)
110% of 90 = 99