If he failed it once, then the probability out of two times is 1/2. He has a 50% chance of failing the drug test again.
I hope this helps!
Answer:
The answer is 31/100
Step-by-step explanation:
5/25 + 2/50 + 7/100 = 31/100
The answer is 1.81 repeated so like 1.81818181
Y : x
14 : 18
31 : x
18*31/14=x
39.85714286
ANSWER
x=39.86
