- 240
- 340
- 12 — correct answer
- 15
Step 2: Write 400% as a fraction: . So the increase is .
Step 3: Add the increase to the original: . We are told this equals 60, so .
Step 4: Divide both sides by 5 to get alone: .
Step 5: So the quantity is 12.
1,496 real West African Examinations Council (WASSCE) questions from 1997 to 2026, every one with a worked solution. Practise them timed, on the web, on Android, or offline on desktop.
Taken straight from the papers below — one from each of the most recent years, with the answer marked and the reasoning written out.
West African Examinations Council (WASSCE) sets 50 questions in Mathematics, answered in 150 minutes — about 180 seconds a question. Practising against that clock is the part most candidates skip, and it is the part that costs marks.
We hold 1,496 published Mathematics questions spanning 1997 to 2026. You can practise any single year’s paper, or sit a full timed mock that mirrors the real interface — the navigator, the flags and the auto-submit included.
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