a five-question quiz is taken in which the first and second questions have four answer choices the third and fourth questions ha
ve three answer choices and the last question has five answer choices a student randomly marks an answer for each question, what is the expected number of questions he will answer correctly
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
After how many minutes, will they round together
First, convert the given time to minutes
So, we have:
List out the multiples of the time of both security personnel take round.
In the above lists, the common time is:
<em>This implies that they go on round after </em><em></em>