Question

Can someone help me with this

there are only blue, red, green and yellow cubes in a bag.
there are 3 times as many blue cubes than yellow cubes and 5 times as many green cubes than blue cubes.
Sarah takes a random cube from the bag.
what is the probability that she chose a yellow cubes give as a fraction in simplest form

Answer 1

`(1)/(18)`

Explanation:

So say there are x yellow cubes.

Yellow = x

Blue = 3x

Green = 15x

It doesn't say red so I'm going to assume there are none.

`(x)/(18x)=(1)/(18)`