Question

Identify the interval that is not equal to the other three?

15-19
30-34
40-45
45-49

Answer 1

40-45 is the interval not equal to the other three!

Explanation:

15-19=-4

30-34=-4

40-45=-5

45-49=-4

40-45=-5 while the others equal -4

Answer 2

40-45

Explanation:

The rest equal -4, 40-55 is -5.