Multiple choice

A candidate is to be selected for an interview for 2 posts. The number of candidates for the first post is 5 and for the second post is 6. Find the probability of getting at least one job.

  1. 5/11

  2. 6/11

  3. 2/11

  4. 1/3

  5. 1/11

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The calculation of probability is as follows:
 
Probability that the candidate does not get an offer from the first interview is 4/5.
Probability that the candidate does not get an offer from the second interview is 5/6.
Total probability of not getting an offer is 4/5 * 5/6 = 2/3
Hence, the probability of getting at least one job is 1 - 2/3 = 1/3