Bags of chips: 10 bags of salted chips, 15 bqq, 12 plain, and 15 ketchup.

A caf is selling as a part of their lunch deal. The caf has 10 bags of salted chips, 15 bqq, 12 plain, and 15 ketchup. If you and 3 friends buy lunch at the caf

a)What is the probability that you all get different types of chips

b)What is the probability that all og you get the same type of chip

vasphoto said:

A caf is selling as a part of their lunch deal. The caf has 10 bags of salted chips, 15 bqq, 12 plain, and 15 ketchup. If you and 3 friends buy lunch at the caf

a)What is the probability that you all get different types of chips

b)What is the probability that all og you get the same type of chip

Click to expand...

What are your thoughts?

Please share your work with us ...even if you know it is wrong.

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/announcement.php?f=33

vasphoto said:

A caf is selling as a part of their lunch deal. The caf has 10 bags of salted chips, 15 bqq, 12 plain, and 15 ketchup. If you and 3 friends buy lunch at the caf
a)What is the probability that you all get different types of chips
b)What is the probability that all og you get the same type of chip

Click to expand...

@vasphotovasphoto: as you have been told, you must first show some effort.
But be mindful that as written, that are multiple models as to how the bags of chips are chosen. How does the server preparing the meal choose the bag that goes with the meal? Are all 52 bags in one large bin? Are they lined up on a conveyor and are taken just as they come? Or just how are the chosen?

Denis said:

A box contains 10 red balls, 15 blue balls, 12 black balls
and 15 white balls.
4 balls are drawn at random.
a) what is probability that all balls are different in color?
b) what is probability that all balls are same color?
Easier for you to follow?

Click to expand...

Does the original post say that the bags of chips are chosen at random?