Question

There are 30 cards, of same size, in a bag on which numbers 1 to 30 are written. One card is taken out of the bag at random. Find the probability that the number on the selected card is not divisible by 3.

Answer 1

Answer:

please rate my answer...

Answer 2

Probability that the number on the selected card is not divisible by 3 = 2/3

Step-by-step explanation:

Total cards = 30

Numbers divisible by 3 between 1 to 30 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

Number of unfavorable outcomes = 10

Total outcomes = 30

So number of favorable outcomes = 30-10 = 20

Probability that the number on the selected card is not divisible by 3 = 20/30 = 2/3