Joseph says that in the number 9,999,999,all the digits have the same value? is joseph correct? explain

(a) 8 balls

(b) 4 balls

Step-by-step explanation:

Let

Number of balls

For a box, the probability that there are N balls in it is:

For 2 boxes, it is:

From the question, we have:

Favorable outcome

To solve for N, we have:

Divide both sides by 2

Take log of both sides

Apply law of logarithm

Make N the subject

Approximate

Solving (b): Balls in one of the two boxes.

Here, we assume that each ball will have almost the same number of balls at a given instance;

Hence, we have:

4 balls in each box