There is a box full of marbles, all but two are blue, all but two are green, and all but two are red.
How many marbles are in the box ?
3 marbles. One of each color.
Answer: There are 3 marbles (1 blue, 1 green, and 1 red).
There are three marbles
A box contains 4 blue, 3 red, 5 green and 6 yellow marbles. If three marbles are drawn at random, what is the probability that at least one is green?
There are four different letters and four different letter boxes, in how many methods these letters can be dropped in the boxes, if all the four letters in a single box are not allowed?
In a bouquet there are three times as many White flowers as Blue flowers.
There are eight more Pink flowers than Blue and four less Purple than Pink.
There are nine Purple flowers in the bouquet.
How many White flowers are there?
