A class of 30 students occupy a classroom containing 5 rows of seats, with 8…
2018
A class of 30 students occupy a classroom containing 5 rows of seats, with 8 seats in each row. If the students seat themselves at random, the probability that the sixth seat in the fifth row will be empty is
- A.
1/5
- B.
1/3
- C.
1/4
- D.
2/5
Attempted by 35 students.
Show answer & explanation
Correct answer: C
Total seats = 5 rows × 8 seats = 40. There are 30 students, leaving 10 empty seats. The probability that a specific seat is empty is the ratio of empty seats to total seats: 10/40 = 1/4.