Question

PLEASE HELP A bag contains 21 red marbles and 28 blue marbles

What is the probability of drawing a red marble?

Answer 1

Number of red marbles are 21

Number of blue marbles are 28

we have to find the probability of drawing a red marble

Total Number of marbles is 21+28 = 49

Probability of drawing a red marbles = 21/49

Probability of drawing a red marbles = 3/7

So, the probability of drawing a red marbles is 3/7 .