In a class, there are 15 boys and 10 girls. Three students are selected at ran

In a class, there are 15 boys and 10 girls. Three students are
selected at random. The probability that 1 girl and 2 boys are
selected, is:

Question Posted / guest

2 Answers
11489 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability..

Answer / md.vali hasan

total ways to select three people is 25C3.
2 boys can be selected by 15C2 ways.
1 girl can be selected by 10C1 ways.
so probability of 1 girl and 2 boy are selected is-
15C2*10C1/25C3 = 0.456 .

Is This Answer Correct ?

21 Yes

2 No

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability..

Answer / kannan.j

For 1 girl is 1/25 and for 2 boys 2/25

Is This Answer Correct ?

4 Yes

22 No

Post New Answer

More Mechanical Engineering Interview Questions

what are your negative points?

3 Answers

what are the parameters are selected while manufacturing a single cylinder block?what are the different kind of test is conducted on it so that it can withstand with all those condition which required to run the engine efficiently.which force is act when piston slide inside the cylinder.

0 Answers Emco,

hi this is ravi , i was short listed in hal assistant engineer, now im going for interview can anybody help how is the interview for mechanical stream very urgent if anybody knows forward to me my mail id i.ravibabu2@gmail.com

0 Answers

Explain how can you convert air mass to air volume?

0 Answers

what do you know about the company?

1 Answers Concentrix, Essar, Expedia, Honeywell, Huawei, Zomato,

In auto mobile industry for any type of vehicle how can we differentiate 2 stroke and 4 stroke engine....

5 Answers

how water evaporated in sea

0 Answers OGDCL,

Explain the formation of micro structures of pearlite, bainite and martensite in steel?

0 Answers

HOW MANY vA=1kv?