Probability

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Question 57

There are $n\,$ pens in a box. 14 of the pens are black. 6 of the pens are green. The rest of the pens are red. One of the pens is chosen at random. The probability that the pen is red is $57\displaystyle \frac{5}{7}$ .

Find the value of $n$ .

[2]

Probability

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Question 57

There are $n\,$ pens in a box. 14 of the pens are black. 6 of the pens are green. The rest of the pens are red. One of the pens is chosen at random. The probability that the pen is red is $57\displaystyle \frac{5}{7}$ .

Find the value of $n$ .

[2]

Probability

Question 57

Markscheme

Probability

Question 57

Markscheme

Probability

Question 57

Probability Questions

Probability

Question 57

Probability Questions