Question

PLEASE HELP!!!

41. A bag contains 13 red marbles, 12 green marbles and 5 blue marbles. If you mix up the
marbles and pull one out at random, what is the probability that it will be blue? (Answer,
of course, as a fraction in lowest terms.)

Answer 1

1/6 chance of getting blue

Explanation:

find your total (30) that will be your denominator

the number of blue marbles will be your numerator (5)

then simplify 5/30 to 1/6

Answer 2

Number of red marbles = 13

Number of green marbles = 12

Number of blue marbles = 5

Total Number of marbles = 13+12+5

Total Number of Marbles = 30 marbles

`\bf \: probability \: of \: blue \: marbles \: = (number \: of \: blue \: marbles)/(total \: number \: of \: marbles)`

`\sf \dashrightarrow \: probability \: of \: blue \: marble = (5)/(30) \\ \\ \sf \dashrightarrow \: probability \: of \: blue \: marble = \cancel (5)/(30) \\ \\ \sf \dashrightarrow \: probability \: of \: blue \: marble = (1)/(6)`

So, the probability of blue marbles would be ⅙ .