Question 33
Linear and Simultaneous EquationsA cyclist moved at a speed of X km/h for 2 hours. He then increased his speed by 2 km/h for the next 3 hours. If the total distance covered is 36 km, calculate his intial speed, X.
- A.12 km/h
- B.3 km/h
- C.4 km/h
- D.6 km/h
Show the answer and explanation
Answer: D (6 km/h)
Explanation
Distance = 2X + 3(X + 2) = 5X + 6 = 36, so X = 6 km/h.