Question

In a class of 400 students ,if a student is selected at random, the probability of getting a girl
is 0.75 Find the number of boys in the class.

Answer 1

Step-by-step explanation:

hope it would help u and yes then mark as brainliest

Answer 2

Concept Introduction:-

It could take the shape of a word or a number representation of the quantity's arithmetic value.

Given Information:-

We have been given that in a class of $400$ students, if a student is selected at random, the probability of getting a girl is $0.75$

To Find:-

We have to find that the number of boys in the class.

Solution:-

According to the problem

Total number of students$= 400$

Given probability of girl $P(G)=0.75$

Then probability of boy is $P(B)= 1-0.75=0.25$

Number of boys be $x$

Probability of getting a boy is$= x/400$

According to the question

$0.25=x/400\\1/4=x/400\\x= 100$

Final Answer:-

The correct answer is the number of boys in the class is $100$.

#SPJ2