Mathematics · Oct / Nov 2024 · Paper 41 · Question 5
0580
As printed in the paper
The question as text
A box contains 3 blue pens and 5 red pens.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
5(a)[1]
5 oe 8 [1]
5(b)(i)[2]
Tree diagram correct probabilities on 3 pairs of branches 3 8 5 8 [2]
B1FT for one pair of branches of first stage or second stage correct
5(b)(ii)[3]
17 oe 32 [3]
M2FT for their 3 3 5 5 × + × oe 8 8 8 8 or M1FT for one correct product seen
5(c)[3]
15 56 oe [3]
M2 FT for 3 2 5 × × × k where k is 1, 2 or 8 7 6 3 or M1FT for 3 2 5 6 seen oe and and 8 7 or for showing the 3 possible combinations If 0 scored,
SC1 for answer 135 512 oe
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