BECE Mathematics 2026 Paper

Concept:Distance is constant, so time is found by dividing distance by new speed.Solution:Distance covered at 20 km/h in 35 minutes:$35$ minutes $= \frac{35}{60} = \frac{7}{12}$ hours.Distance $= 20 \times \frac{7}{12} = \frac{35}{3}$ km.Time at 28 km/h:$t = \frac{\frac{35}{3}}{28} = \frac{35}{84} = \frac{5}{12}$ hours.$\frac{5}{12} \times 60 = 25$ minutes.Shortcut: For the same distance, time is inversely proportional to speed: $t = 35 \times \dfrac{20}{28} = 25$ minutes.Answer:Option C (25 minutes)