Question

There are 15 boys and 10 girls in a lottery.  Three students are chosen at random.  What is the probability that one of the selected students is a girl and 2 boys​

Answer 1

Answer:

21/46

Step-by-step explanation:

let 5-sample space E- event of selecting 1 girl and 2 boys = 25 C3

= 2300

= n (E) = 10 c1 * 15 c2 = 1050

1050 /2300 = 21 /46

Answer 2

Answer:-

21

46

Step-by-step explanation:

no of boys = 15

no of girls = 10

total sample space n(S) = 25

let probability of getting a girl and 2boys be E

So, total = 2300

E= 1050

P(E) = No of favourable outcomes

Total no of Outcomes

P(E) = 1050 = 21

2300 46