Q.

Five digit numbers can be formed from the digits 1, 2,3,4,5. If one number is selected at random, the probability that it is an even number is

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a

47

b

25

c

716

d

116

answer is B.

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Detailed Solution

1 ,  2,    3,    4 ,   5⇒n(S)=5!      n(A)=2.4!∴P(A)=25
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