Step-by-step explanation:
Let the unit distance be 'x'.
There are 4 units in between A and E. It means,
A(unit) + 4(unit) = E(unit)
-1 (1/2) + 4x = (1/2)
-(2+1)/2 + 4x = 1/2
- 3/2 + 4x = 1/2
4x = 1/2 + 3/2
4x = 4/2
x = 1/2
B is at distance x from A= -3/2 + 1/2 = -1
C is at distance 2x fromA=-3/2+2(1/2)=-1/2
D is at distance 3x from A=-3/2+3(1/2)=0
