pjmcdonnell
New member
- Joined
- Mar 13, 2019
- Messages
- 1
Hello, I'm new to the site so sorry if I've done anything wrong? I created an account just for this problem because it was bugging me so much. Yes I know it probably has a very simple solution, but it was the last question on one of my GCSE mock exams so I'd like to make sure.
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There are only green pens and blue pens in a box.
There are three more blue pens than green pens in the box.
There are more than 12 pens in the box.
Simon is going to take at random two pens from the box.
The probability that Simon will take two pens of the same colour is 27/55.
Work out the number of green pens in the box.
HELP
****
There are only green pens and blue pens in a box.
There are three more blue pens than green pens in the box.
There are more than 12 pens in the box.
Simon is going to take at random two pens from the box.
The probability that Simon will take two pens of the same colour is 27/55.
Work out the number of green pens in the box.
HELP