Mathematics · Oct / Nov 2021 · Paper 22 · Question 16
0580
As printed in the paper
The question as text
Sachin picks a number at random from the first three multiples of 3. He then picks a number at random from the first three prime numbers. He adds the two numbers to find a score.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
16(a)[2]
Multiples of 3 + 3 6 9 2 5 8 11 Prime numbers 3 6 9 12 5 8 11 14 [2]
B1 for at least 4 correct entries
16(b)[2]
2 5 oe [2]
B2FT for their 2 their 5 their 2 range 1 ⩽ k ⩽ 7 or B1FT for k is any integer in the k c or c is 0, 1 or 2 their 5
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