A car traveling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec. What is the actual speed of the car?
Q1. A car traveling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec. What is the actual speed of the car?
Answer: 35 km/hr
Explanation: Time = 1 hr 40 min 48 sec = 1.68 hr; actual speed = (42/1.68) × (7/5) = 25 × 1.4 = 35 km/h.