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12 x 3 = 36
12 x 8 = 96
96 - 36 = 60
there are 60 blue pens in the box.
What else can I help you with?
A jar contains three colored marbles 10 red 15 green and 25 blue If you were to choose without looking what is the probability of selecting a blue marble?
25/50 gives the probability of selecting a blue marble
What is the probability of selecting 4 red or 5blue marbles?
The probability of selecting 4 red marbles or 5 blue marbles depends on how many marbles there are altogether, and how many of the total number of marbles are red and how many are blue.
A jar contains three colored marbles 10 red 15 green and 25 blue If you were to choose without looking what is the probability of selecting a green marble?
It is 15/50 = 0.3
A bag contains 3 red marbles 5 blue marbles 8 yellow marbles and 4 black marbles what is the theoretical probability of randomly picking each color marble?
The theoretical probability of randomly picking each color marble is the number of color marbles you have for each color, divided by the total number of marbles. For example, the probability of selecting a red marble is 3/20.
What is the probability of selecting two ribbons that are not blue if there are 7 yellow 6 blue 9 red and 3 green ribbons in a drawer?
The probability is 19/25 * 18/24 = 0.57
A jar contains 11 white and 21 blue marbles a marble is drawn at random pnot blue express the probability as a fraction?
Probability of not blue is the probability of white. The probability of white is 11/(11+21) or 11/32.
When a jar contains 5 white marbles 3 blue marbles and 2 green marbles and if one marble is drawn at random then what is the probability that it will be blue?
There is a probability of 3 that it will be blue.
If you have been given a bag that contains 1 yellow 3 green and 4 blue marbles what is the probability of selecting green blue without replacement?
First, there are 3 greens out of 8, then 4 blues out of 7. So the probability is these two ratios multiplied: P(green, blue) = P(green/8) * P(blue/7) = (3/8) * (4/7) = 12/56 or 3/14
Is the probability that a blue marble will NOT be selected from a bag containing 9 red marbles 6 blue marbles 7 green marbles and 11 yellow marbles if one is selected randomly?
To find the probability that a blue marble will NOT be selected, first calculate the total number of marbles: 9 red + 6 blue + 7 green + 11 yellow = 33 marbles. The number of non-blue marbles is 9 red + 7 green + 11 yellow = 27 marbles. Therefore, the probability of NOT selecting a blue marble is 27/33, which simplifies to 9/11.
What is the probability of choosing a marble that is not blue if a jar contains 4 red 7 green and 5 blue marbles?
5:16
A gumball machine contains Orange gumballs W blue gumballs and W green gumballs.What is the probability that the next gumball comes out will be orange?
The probability is X/(X + 2W) where X is the number of orange gumballs.
A bag contains 5 red marbles 3 blue marbles and 1 green marble. A randomly drawn marble is not blue?
To find the probability of drawing a marble that is not blue, we first calculate the total number of marbles, which is 5 red + 3 blue + 1 green = 9 marbles. The number of marbles that are not blue is 5 red + 1 green = 6 marbles. Therefore, the probability of drawing a marble that is not blue is 6 out of 9, which simplifies to 2/3.
