Question

Q.Out of 35 students participating in a debate 10 are girls. Find the probability that winner is
a boy
(a) 1/7
(b) 5/7
(c) 6/7
(d) 2/7
​

Answer 1

$\frac{10}{35}$

When simplified is

$\frac{2}{7}$=girls

2-7=5

We need to find boys

So the answer is

B) 5/7

Answer 2

Answer:

5/7

Step-by-step explanation:

There are Total students 35.

Hence n(S)=35

There are 10 girls. Hence there are 35-10=25 boys.

Let the event A be the winner selected among the students is a boy.

n(A)=25

P(A)=n(A)/n(S)

=25/35

=5/7

Hence correct option is B 5/7

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