Question

A two digit number is formed with digits 2, 3, 5, 7, 9.
without repitition What is the probability that the
number formed is an odd number?

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Answer 1

Answer:

4/5

Step-by-step explanation:

Digits are {22,23,25,27,29,32,33,35,37,39,52,53,55,57,59,72,73,75,77,79,92,93,95,97,99}

∴Total digits are 25

Odd numbers are 20

∴ probability that an odd number is formed is

20/25= 4/5