Answered

A box contains a dozen of ball pens. Some are colored red and the others are black. The probability of getting a black ball pen is ¾.

a. How many black ball pens are in the box?

Sagot :

Xiurenity0326viz
Answer: 9

Solution: you can simply multiply the probability to the number of ballpens per box, which is 12.

12 x 3/4 = 9
Spongebobhqbanviz

Answer:

9

Step-by-step explanation:

12x¾=9 so that explains the question