A bag contains n counters One counter is blue and the rest are red. Two counters are taken at random from the bag. a Express, in terms of n, the probability that a counter of each colour is taken. Give your answer as a fraction in its simplest form. b The probability that a counter of each colour is taken is 0.125 How many red counters are in the bag?

Question
A bag contains n counters One counter is blue and the rest are red. Two counters are taken at random from the bag. a Express, in terms of n, the probability that a counter of each colour is taken. Give your answer as a fraction in its simplest form. b The probability that a counter of each colour is taken is 0.125 How many red counters are in the bag?
Answer:
A bag contains n counters One counter is blue and the rest are red. Two counters are taken at random from the bag. a Express, in terms of n, the probability that a counter of each colour is taken. Give your answer as a fraction in its simplest form. b The probability that a counter of each colour is taken is 0.125 How many red counters are in the bag? 65047f91cfac4.webp
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algebra 10 months ago 8916