x Turn on thread page Beta
 You are Here: Home >< Maths

# Probability question watch

1. In a bowl of fruit there are 4 pears, 3 apples, 7 bananas and some oranges.Charlie is asked to choose a piece of fruit at random.If the probability that he chooses a pear is 0·2, how many oranges are in the bowl?

I'm really confused by this. I looked at the answer and the answer is 6 but I don't know how to get the answer? Can someone help me with the working to get to that.
2. 4/how many pieces of fruit are in the bowl = 0.2
so 4/ 0.2 = 20 so there are 20 pieces of fruit in the bowl.
4 + 3+ 7 = 14
20 - 14 = 6
3. (Original post by anon1700)
4/how many pieces of fruit are in the bowl = 0.2
so 4/ 0.2 = 20 so there are 20 pieces of fruit in the bowl.
4 + 3+ 7 = 14
20 - 14 = 6
Thanks bro. Helped me a lot

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: November 3, 2015
Today on TSR

### How much will your degree earn you?

Find out where yours ranks...

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams