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Q10: Question – Paper 3 – November 2017
Q10: Question – Paper 3 – November 2017
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10)
There are only blue counters, yellow counters, green counters and red counters in a bag.
A counter is taken at random from the bag.
The table shows the probabilities of getting a blue counter or a yellow counter or a green counter.
10)
There are only blue counters, yellow counters, green counters and red counters in a bag.
A counter is taken at random from the bag.
The table shows the probabilities of getting a blue counter or a yellow counter or a green counter.
a) Work out the probability of getting a red counter.
[1 mark]
b) What is the least possible number of counters in the bag?
You must give a reason for your answer.
[2 marks]