Introduction to probability
If the probability of a six-digit number N whose six digits are 1, 2, 3, 4, 5, 6 written as random order is divisible by 6 it p, then the value of 1/p is ________.
Total number of cases = n(S) = 6!
Now sum the given digits is 1 + 2 + 3 + 4 + 5 + 6 = 21, which is divisible by 3.
Now we have to form the number which is divisible by 6, then we have to ensure that the digit in unit place is even.
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Similar Questions
A bag contains 10 different balls. Five balls are drawn simultaneously and then replaced and then seven balls are drawn. If the probability that exactly three balls are common to the two draws is p, then the value of 8p is ________.
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