The probability that the answer choice which Rohit selects for a question is wrong is 2/3
<h3>What is the probability that the answer choice which rohit selects for a question is wrong?</h3>
The given parameters are
Options = 3
Correct Option = 1
The above means that
Wrong options = 2
The probability that the answer choice which Rohit selects for a question is wrong is calculated as:
P = Wrong options/options
So, we have
P = 2/3
Hence, the probability that the answer choice which Rohit selects for a question is wrong is 2/3
Read more about probability at:
brainly.com/question/24756209
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Below is the solution for the given problem above:
<span>WX = 10 sqrt(2) by the Pythagorean Theorem.
WY/WX = WX/10 because of similar triangles.
WY = [(WX)^2]/10 = 20
WY = WZ + YZ
YZ = 10
</span>
I hope this helps!
The answer is 13 because after you subtract 28 and 9.99, you then divide that number by 1.29 and you only take the whole number
Answer:
The answer is below
Step-by-step explanation:
Let B represent those that like badminton, F represent those that like football and V represent those that like volleyball. Let x represent the total number of people.
n(B) = (1/3)x, n(F) = (3/4)x, n(V) = (5/6)x
n(B∩F∩V) = 20% of x = 0.2x
n(B∩F) = 17, hence n(B∩F∩V') = 17 - 0.2x
n(V∩F) = 60, hence n(B'∩F∩V) = 60 - 0.2x
n(B∩V) = 65, hence n(B∩F'∩V) = 65 - 0.2x
n(B∪F∪V)' = 8
n(B∩F'∩V') = (1/3)x - 0.2x - (17 - 0.2x) - (65 - 0.2x) = 0.533x - 82
n(B'∩F∩V') = (3/4)x - 0.2x - (17 - 0.2x) - (60 - 0.2x) = 0.95x - 77
n(B'∩F'∩V) = (5/6)x - 0.2x - (60 - 0.2x) - (65 - 0.2x) = 1.033x - 125
Therefore:
x = n(B∩F'∩V') + n(B'∩F∩V') + n(B'∩F'∩V) + n(B∩F∩V) + n(B∩F∩V') + n(B'∩F∩V) + n(B∩F'∩V) + n(B∪F∪V)'
x = (0.533x - 82) + (0.95x - 77) + (1.033x - 125) + (0.2x) + (17 - 0.2x) + (60 - 0.2x) + (65 - 0.2x) + 8
x = 2.1166x - 134
1.1166x = 134
x = 120
Therefore there was 120 students
<span>To write the given fraction ,as a sum or difference of any two fractions, we break the numerator into two parts. i.e. we write 3n + 5 as separately 3n and 5 to get two fractions. The denominator will come with both the parts of the separated numerator. Thsu, the new fraction will be 3n/7 + 5/7.</span>
