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CGP EDU Academic Team
Published on: August 13, 2026
On a particular day, six persons pick six different books, one each from different counters at a public library. At the closing time, they arbitrarily put their books to the vacant counters. Then find the probability that exactly two books are at their previous places.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
3/16
Sol. total no. of possible = 6! ; favorable cases = 6 C 2 .4! . 
= 15 × 9
Desind probability = 
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