Question

find x if (-3)race to x+1 *(-3) race to 6 +(-3) race to 7

Answer 1

Step-by-step explanation:

Let the probability of winning of horse C is x.

then probability of winning B is 2x and probability of winning A is 4x.

Also total probability of winning is 1.

So P(A)+P(B)+P(C)=1

⇒x+2x+4x=1⇒x=

7

1

Hence probability of winning of horses A,B, and C are

7

4

,

7

2

and

7

1

respectively.