105
No.
125
100
125 is in the middle of 100 and 150.
105
(100 + 150) ÷ 2 = 125 is the number in between.
Multiples of 150
No.
It is: 150
125
100
120
150
120
No it is not, because it doesn't divide evenly into 150.
125 is in the middle of 100 and 150.