Question

you have the numbers 1-24 written on slips of paper. If you choose one slip at random, what is the probability that you will not select a number which divisible by 3?a. 1/3b. 2/3c. 5/8d. 3/8

Answer 1

24 is divisible by 3

21 is divisible by 3

18 is divisible by 3

15 is divisible by 3

12 is divisible by 3

9 is divisible by 3

6 is divisible by 3

3 is divisible by 3

8 numbers are divisible by 3

Total numbers: 24

24-8 = 16 numbers are not divisible by 3

Divide the number that are not divisible by 3 , by the total numbers:

16 /24 = 2/3