Question

a bag has 72 marblesthere are 13 green marbles, 7 red marbles are green? whatvpercent are red? what percent are rainbow?

Answer 1

Probability is given by:

$P(A)=\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

There is a total of 72 outcomes, then:

For green:

$\frac{13}{72}$

For red:

$\frac{7}{72}$

For rainbow:

$\frac{3}{72}$