Question

Find the probability of getting multiple of 3 in between 20 to 29.

Answer 1

Hey there!

Sample space ( S ) = 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 .

n(S) = 8

Outcomes = 21 , 24 , 27 .

n(P) = 3

Probability of getting a multiple of between 20 to 29 = n(P)/n(S) = 3/8 .

Hope helped!

Answer 2

Total numbers between 20 and 29 = 8

Multiples of 3= {21, 24, 27 } 

So favourable outcomes= 3

Probability = 3/8