A pencil bag contains 24 red pencits, 15 blue pencils, and 8 green pencils. Without looking, Carrie selects a pencil, gives it to her friend, and then selects another pencil. What is the probability that Carrie selected a blue pencil for her friend and a red pencil for herself? Write your answer as a percent. Round to the nearest tenth of a percent.

Respuesta :

24+15=39.
Picked for her friend= 15/39. 
Picked for herswlf= 24/39. 
To get the %, divide the #'s and then multiply them by a 100.
So, 15/39=.384615*100=38.46%
24/39=.615385*100= 61.54%