basic Probability! Please Help..!

I am confusing over basic probability..!

Please help out...!

Suppose a bag has 5 red 3 white and 2 black balls..!

The probability of getting one red and one white ball is..?

I am confusing over the following two things:

a) 510x39

b) 510x39 + 310x59

Please..help! :-/

4 Answers

The question doesn't specify any order of selection, so the answer should be a).

Doesn't specifies order.. Hence we should take both the cases na.. Then how can it be a)?

sume only 1 red and 1 white is there in the bag. ;)

b, cuz order isnt specified

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