There are 5 Red, 4 White and 3 Green marbles in a bag. If all are drawn, determine the number of different arrangements.

A bag has 5 red, 4 blue, and 4 green marbles. If all are drawn one by one and their colours are recorded, how many different arrangements can be found?

A bag has 5 red, 3 green and 7 yellow balls. If all are drawn one by one and their colours are recorded, how many different arrangements can be found?

Solve the following questions. There are 3 red 7 green and 12 white marbles in a jar. One marble is drawn at random. Find the probability that marble drawn in not green.