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19 votes
Does anyone know how to work this out

Does anyone know how to work this out-example-1
User Slkorolev
by
7.7k points

2 Answers

5 votes

Answer:

1/19

Explanation:

y = number of yellow cubes

3y = number of blue cubes

5(3y) = number of green cubes

total number of cubes = 19

P(yellow) = 1/19

User Sephiroth
by
7.7k points
7 votes
let x represent yellow cubes

blue cubes = 3x

green cubes = 15x

to make this simpler let's just say x = 1

so 1 yellow cube 3 blue cubes and 15 green cubes

so there are 19 cubes in total

1 of them are yellow

so she has a 1/19 chance of picking a yellow cube
User Msturdy
by
9.0k points

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