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AnnZ [28]
3 years ago
10

A bag contains 10 red marbles, 15 yellow marbles and 5 green marbles. What is the probability of drawing a red or green marble f

rom the bag?
Mathematics
2 answers:
Volgvan3 years ago
8 0
Probability = 

             (number of ways it can come out the way you want)
divided by
             (total number of ways it can come out).

Total number of ways to draw a marble = 30 (marbles in the bag).

Number of ways it can succeed = 15 (number of red or green ones)

Probability = 15/30 = 1/2 = 50% .
Anika [276]3 years ago
3 0
10(red) plus 5(green) equals 15. red plus green plus yellow equals 30 15/30 - 50%
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