Mathematics · Oct / Nov 2022 · Paper 41 · Question 4
0580
As printed in the paper
Show the answer and mark scheme
4(a)(i)[3]
550 nfww [3]
M2 for 500 2 5 ×× + 500 oe 100
or M1 for 500 ×× 2 5 oe 100
4(a)(ii)[2]
546.65 [2]
5 1.8
M1 for 500 × 1 100 + oe
4(a)(iii)[3]
8 nfww [3]
B2 for final answer 13 OR
M2 for trials correctly comparing both investments to 7 and 8 more years
or M1 for at least two trials correctly comparing both investments
4(b)[3]
1476 cao [3]
B2 for 1480 or 1476.2 ... OR 5 10
M1 for 2500 × 1 100 − oe
B1 for their more accurate answer seen correctly rounded to the nearest dollar.
4(c)[3]
3.2[0] or 3.200 to 3.201 [3]
M2 for (...) = 22 2 oe isw
or M1 for [N] × (...)22 = 2[N]
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