SOLUTION: There are 20 children in a class, and 12 of the children are girls. Of the girls, 8 brought a lunchbox, and of the boys 6 did NOT bring a lunchbox. If a child from the class is cho

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: There are 20 children in a class, and 12 of the children are girls. Of the girls, 8 brought a lunchbox, and of the boys 6 did NOT bring a lunchbox. If a child from the class is cho      Log On


   



Question 1151575: There are 20 children in a class, and 12 of the children are girls. Of the girls, 8 brought a lunchbox, and of the boys 6 did NOT bring a lunchbox. If a child from the class is chosen at random, what is the probability that the child brought a lunchbox?
A. 15
B. 310
C. 12
D. 34
E. I don't know.

Found 2 solutions by jim_thompson5910, ikleyn:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

It asks about probability, but none of the answer choices are fractions or decimals between 0 and 1. Your teacher made a typo with the answer choices, or they meant to ask a different question. I would double check.

Answer by ikleyn(52782) About Me  (Show Source):
You can put this solution on YOUR website!
.

There are 12 girls and 20-12 = 8 boys in the class.


Of the girls, 8 brought a lunchbox.


Of the boys, 8-6 = 2 brought a lunchbox.


In all, 8+2 = 10 children brought a lunchbox.


The probability under the problem's question is, therefore,  10%2F20 = 1%2F2.    ANSWER


The option answers list in your post is   I R R E L E V A N T   to the problem.