What or how many questions I would get right if out of 42quentions I can pick 1 out of 5 answers for each question ? eg. (a,b,c,d,e)

1 Answer
Mar 22, 2018

#8#

Explanation:

Since there is a #1/5# chance of getting it right, and you answer #42# questions, it's the same as #1/5 * 42 = 8.5#

Since you can't get #"8 and a half"# questions right, it would just be #"8 correct questions."#