GIVEN: Two persons are initially 24 km apart. Speed of slower person is 16 km/h Distance travelled by faster person when both meet = 120 km. CONCEPT: Speed, time and distance FORMULA USED: Distance = Time × Speed CALCULATION: Distance travelled by faster person = 120 km Distance travelled by slower person = 120 – 24 = 96 km Travelling time of both the person when they meet = 96/16 = 6 hours ∴ Speed of faster person = 120/6 = 20 km/h