Question

A 4 digit number is formed using 0,1,2,3,4,5. All digits are To be different. Find probability for odd number.

Answer 1

$|\Omega|=5\cdot5\cdot4\cdot3=300\\|A|=4\cdot4\cdot3\cdot3=144\\\\P(A)=\dfrac{144}{300}=\dfrac{12}{25}$