Question

A bag contains 7 red marbles, 8 blue marbles, and 3 green marbles. If two marbles are drawn out of the bag, what is the exact probability that both marbles drawn will be red?

Answer 1

Answer:

7/18

Explanation:

put the sum of all the marbles as the denominator and the the total of red marbles as the numerator

Answer 2

7/18 because you add 7+8+3=18 then you put the number of red marbles on top and that’s your answer