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  • In a bus with 20 seats, how many ways can 3 passengers take their seats?Option: 1 5380Option:

In a bus with 20 seats, how many ways can 3 passengers take their seats?

Option: 1

5380


Option: 2

7240


Option: 3

4480


Option: 4

6840


Answers (1)

best_answer

The number of ways the 3 passengers can take their seats in the bus is given by,

1st passenger may choose 1 seat out of 20 seats

2nd passenger may choose 1 seat out of 19 seats

3rd passenger may choose 1 seat out of 18 seats,

Therefore, the total number of ways of selecting a seat is 20 \times 19 \times 18=6840\text{ ways}

Posted by

Devendra Khairwa

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