Mathematics, 30.06.2019 07:50 cool185635

There are 90 counters in a bag. each counter in the bag are either red or blue. the number of red counters : the number of blue counters = 2: 13lee is going to put some more red counters in the bag so that the probability of taking at random a red counter from the bag is 1/3. work out the number of red counters that lee is going to put in the bag?

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There are 90 counters in a bag. each counter in the bag are either red or blue. the number of red co...