2026 NCHS P1 Q15

2026 NCHS P1 Q15

Secondary 4
4 marks

A bag contains 5 red marbles and \(n\) green marbles. Two marbles are drawn at random from the bag, one after the other without replacement. Given that the probability of drawing 2 green marbles is \(\dfrac3{11}\), find the value of \(n\).[4]

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Answer:\(n=6\).

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