The fourth number is 51. 48+49+50+51= 198.
THE NUMER IS 48
A: 1
B: 2
C: 4
D: 5
Total = 1 + 2 + 4 + 5 = 12
C:total = 4/12 = 1/3
A full circle has 360 deg.
1/3 * 360 deg = 120 deg.
So all the multiples of 3 are...
3, 6, 9, 12, 15, 18
and of those, the ones not divisible by 2 are...
3, 9, 15