Question

Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and randomly picks one at a time. The class has 15 boys and 11 girls. What is the probability that the second name Mr. Rosart picks is a boy, if the first one is a boy also? Round your answer to the nearest percent.

A. 54%
B. 44%
C. 60%
D. 56%

Answer 1

D because you need to divide and make the quotient into a percent

Answer 2

D. 56%

Explanation:

For the fractions we will do:

`(wanted.outcome)/(possible.outcomes)`

It depends on if he puts the first name back in, but I am going to asume Mr. Rosart does not, so we will subtract one from the boys for the second pull.

[Wanted over possible]
`(14)/(25)`

[Dividing] 14 / 25 = 0.56

[Making a percent] .56 * 100 = 56%

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather