Mathematics · May / June 2026 · Paper 42 · Question 10
0580
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The question as text
Yasmin collects coins. 10% of her coins are gold. 25% of the remaining coins are silver. The other 54 coins are copper.
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10(a)[2]
18 [2]
M1 for 54 [ Mark at most accurate. 75 ×k oe where k = 25 or 100 ] M1 implied by 0.72 or 72 10 25 − × − or 1 1 oe M1 implied by 0.675 or 67.5% but not 67.5 alone 100 100
10(b)[2]
80 [2]
Mark at most accurate. 10 25 54 − × −
M1 for 1 1 × n = 54 oe e.g. × 100 × 100 100 90 0.75 Working for (b) may be seen in part (a). Give or better credit if it is used in part (b)
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