Mathematics for IGCSE & O level - Proportion (Section 2 - No. 35)
If a car travels 100 miles in 2 hours, how far will it travel in 3 hours at the same speed?
50 miles
150 miles
200 miles
300 miles
Explicació
Distance is proportional to time, so if time increases by a factor of 1.5, distance increases by a factor of 1.5. 1.5*100 = 150.