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A question in my gcse

Unit 1 Number
The problem

There are X counters in a bag.

In the bag there are only blue and red counters.

There are 4 more blue counters than red.

The probability of picking 2 blue counters at random would be 3/8.

Work out the value of X.

The solution

Banana Pie Published on 06 Nov 2020


Thank you Ms, I was meant to write +3, not -3

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