What's the probability of drawing a blue marble from a bowl containing 4 red marbles, 5 blue marbles, and 5 green marbles?

What's the probability of drawing a red marble from the same bowl, given that the first marble drawn was blue and was not placed back in the bowl?

The probability a red marble selected at random from a jar containing p red, q blue and r green marbles is

A marble will be randomly selected from a bag of solid-colored marbles. The probability of selecting a red marble is 5/19 . The probability of selecting a blue marble is 4/19 . What is the probability of selecting a red marble or a blue marble?

Rafi has 16 red marbles and 4 blue marbles. Find the ratio of red marbles to blue marbles Rafi has ?

A bag contains red, white and blue marbles. The probability of selecting a red marble is (2)/(15) and that of selecting a blue marble is (4)/(15) . The probability of selecting a white marble is

Two marbles are picked simultaneously from a box containing three red and five blue marbles. What is the probability that the marbles are of the same color ?

A jar has 54 marbles coloured white, blue, and green. The probability of selecting a blue one at random is 1/3 and probability of selecting a green marble is 4/9 . How many white marbles does the jar contain ?

A bag contains three green marbles, four blue marbles, and two orange marbles. If a marble is picked at random, then the probability that it is not an orange marble is 1/4 (b) 1/3 (c) 4/9 (d) 7/9

Study the given information carefully to answer the question that follow. An urn contains 4 green, 5 blue, 2 red and 3 yellow marbles. If four marbles are drawn at random, what is the probability that two are blue and two are red ?

A bag contains 5 red marbles, 8 white marbles, 4 green marbles. What is the probability that if one marble is taken out of the bag at random, it will be red (ii) white (iii) not green