Question 1
SEAMO self-study edition 2027; not an official 2027 paper. Original source years are retained. 25 questions, 90 minutes; Q1–10: 3 points, Q11–20: 4 points, Q21–25: 6 points, total 100. Original response types and all subparts are preserved. Verified is an editorial convention; source defects, necessary assumptions and unresolved mathematical uncertainty are disclosed.
Tom has to paint a 46 m long fence. On the first day, he paints 10 m of it. Each day after that, he paints 1 m less than the day before. How many days does it take him to finish painting the fence?
Tom has to paint a 46 m long fence. On the first day, he paints 10 m of it. Each day after that, he paints 1 m less than the day before. How many days does it take him to finish painting the fence?