Question

An integer is choosen between 1to 100 find the probability that it is divisible by8

Answer 1

a1 = 8
a2 = 16
d = 8
an=96
an=8+(n-1)8
88/8 = n-1
n=12

P(divisible by 8 )= 12/100

Answer 2

P(8)= favourable Outcome
———————————-
Total numbers of outcomes

Here you have to write 8 multiple upto 100
Last multiple 8,16,24,32,40,48,56,64,72,80,88,96

=12/100
= 3/25