Mathematics, 08.03.2021 20:00, alandrabell9234

There are only purple marbles and orange marbles in a bag. There are three more purple marbles than orange marbles in the bag.
There are more than 12 marbles in the bag.
Roxanne is going to take at random two marbles from the bag.
The probability that Roxanne will take two marbles of the same colour is 43/88
Work out the number of orange marbles in the bag.

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There are only purple marbles and orange marbles in a bag. There are three more purple marbles than...