Question

A box contains 5 red and 7 white
marbles. A marble is drawn at
random from the box. Find the
probability that it will be a: (a)red
marble (b)white marble​

Answer 1

Answer:

Set A={R,R,R,R,R},n(A)=5

Set B={W,W,W,W,W,W,W},n(B)=7

Step-by-step explanation:

hope

Answer 2

Answer:

Red = 5.

White = 7.

Step-by-step explanation:

let the white marbles be,x

And red marbles be,y.

probability of Red marbles=5 × X.

=5x.

probability of white marbles=7 × X.

7x.

Hence,Probability of Red marbles will be 5.

And probability of White marbles will be 7.