24 buses are running between two places P and Q.
24 buses are running between two places P and Q. In how many ways can a person go from P to Q and return by a different bus?
Answer/Solution
552
Steps/Work
we can go in any bus out of the 24 buses.
Hence He can go in 24 ways.
Since we can not come back in the same bus that he used for travelling,
we can return in 23 ways.
Total number of ways = 24 x 23 = 552
ANSWER:C
Hence He can go in 24 ways.
Since we can not come back in the same bus that he used for travelling,
we can return in 23 ways.
Total number of ways = 24 x 23 = 552
ANSWER:C