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15 - n/6 = n/6 - 1 16 = 2n/6 8 = n/6 n = 48 Check it. 15 - 8 = 8 - 1 It checks.
There are n! = 1*2*3*...*n possible orders and out of these, only one is correct. So the probability is 1/n!There are n! = 1*2*3*...*n possible orders and out of these, only one is correct. So the probability is 1/n!There are n! = 1*2*3*...*n possible orders and out of these, only one is correct. So the probability is 1/n!There are n! = 1*2*3*...*n possible orders and out of these, only one is correct. So the probability is 1/n!
One is shutting.
One lot of them.
None if n > m n! if n = m and mPn = m!/(m-n)! where k! denotes 1*2*...*k