Student: A boy runs 200 metres in 24 seconds. What is his speed?\nOptions:\n(A) 20 km/hr\n(B) 24 km/hr\n(C) 30 km/hr\n(D) 32 km/hr\n(E) 34 km/hr.
Another student: Let's say, hmmm...

User
200/24 * 18/5 = 30 km/hr Final answer: (C).
Assistant