Question

In class 10 A, there are 20 boys and 20 girls. In 10 B, there are 15 boys and 25 girls. One
student is to be selected from each class,
P (1) What is the probability of both being girls?
2 (ii) What is the probability of both being boys?
(iii) What is the probability of one boy and one girl?
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Answer 1

Answer:

1). 45/80=9/16

Step-by-step explanation:

35/80

.......please divide this

Answer 2

Answer:

1.

$\frac{2}{80 }$

2.

$\frac{2}{80}$

3.

$\frac{1}{40}$

$\frac{1}{40}$

I have use 80 because in both class the average of students is 40 and

one child have to be taken from both class so the numerator is 2

I hope it will help you.....