imogenhardman imogenhardman

05-12-2022
Mathematics

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there are some red counters in a bag. The ratio of red counters to blue counters are 3:12 Two counters are removed at random. The probability that both the count is taking a blue is 1/20. How many counters are in the bag before any counters were removed?

there are some red counters in a bag The ratio of red counters to blue counters are 312 Two counters are removed at random The probability that both the count i class=

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