Mathematics · May / June 2023 · Paper 42 · Question 6
0580
As printed in the paper
Show the answer and mark scheme
6(a)(i)[2]
1 5 , 2 7 , 3 9 final answer [2]
B1 for 2 correct terms isw or for 0.2 and (0.286 or 0.2857…) and 0.333…
6(a)(ii)[2]
36 [1]
+ 2
M1 for k = 12(2 k 3) or better 25
6(b)(i)[2]
n3 + 5 oe final answer [2]
B1 for any cubic or common third differences of 6 (at least 2) or for correct answer seen and spoilt
6(b)(ii)[2]
100 × 21–n oe final answer [2]
[ + ] n k 1
B1 for 2–n [+k] oe or oe in answer 2 or for correct answer seen and spoilt
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