Mathematics (AS & A Level) · Oct / Nov 2018 · Paper 71 · Question 4
9709
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The question as text
Small drops of two liquids, A and B, are randomly and independently distributed in the air. The average numbers of drops of A and B per cubic centimetre of air are 0.25 and 0.36 respectively. 3
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4(i)[3]
4(ii)[5]
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