There Are R Red Marbles Blue Marbles In A Bag

There are 5 red marbles 7 green marbles 4 black marbles and 8 blue marbles in a bag suppose you select one marble at random.

There are r red marbles blue marbles in a bag.

P red ask for details. There s two green marbles in the bag. And then there s one blue marble in the bag. A bag contains 100 marbles.

60 of the marbles are blue ha your task is to guess which of the two conditions is in fact true. So i could pick that green marble or that green marble. There s one blue marble. How many marbles total are in the bag.

One of two conditions exists with respect to the number of red and blue marbles. So this is all the possible outcomes. You reach in and randomly draw a marble replace it and draw another marble. There is an equal number of red and blue marbles h0 or.

Each marble is either red or blue. So i could pick that red marble or that red marble. A bag of marbles consists entirely of red blue and green marbles. The ratio of red to blue to green marbles in the bag is 2 5 7.

Finally since there are only red and blue marbles in the bag we can say that r b t. There s two red marbles in the bag. These are clearly all yellow. In order to reduce the number of variables to two and limit the number of equations in the system to two we can subsitute b r 88 into r b t so that it becomes r r 88 t and then becomes 2r 88 t.

There are 5 red marbles 15 blue marbles and 5 green marbles in a bag. What is the probability that the first will be red and the second will be blue. There are 20 blue marbles in the bag.