Algorithms Quiz | Sudo Placement [1.5] | Question 4

A convoy of 40 cars occupy a parking containing 6 rows of parking space where every row contain 10 parking. If parking takes place randomly then, what is the probability that the 4th parking in 4 row will be empty?
(A) 1
(B) 1/2
(C) 1/3
(D) 0

Answer: (C)
Explanation: There are total 60 parking out of which 4th parking in 4th rows needs to be empty.
I.e. 59c40 / 60c40 = 1 / 3.
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