ummmm it could be third one i guesss
Answer:
66 67/100
Step-by-step explanation:
The probability that Boris will win the contest is:
P = 0.286
<h3>
How to get the probability?</h3>
For some given odds a:b, the probability is just computed as the quotient between a and b, which gives:
P = a/b
In this case, the odds are 2:7, so the probability that Boris will win the contest is:
P = 2/7 = 0.286
Written in percentage form, we get:
P = 28.6%
If you want to learn more about probability:
brainly.com/question/24756209
#SPJ1
I guess you are asking the measurement of the external angle of 60. If so it will be 120 or the supplement of 60 is 120