Question

A car covers 2800 km in 35 hours. The speed of a bus is 4 km/hr more than 120% of the speed of the car. How much distance will be covered by the bus in \(3 \dfrac{1}{2}\) hours?  
1. 360 km
2. 420 km
3. 380 km
4. 350 km

Answer 1

Correct Answer - Option 4 : 350 km

Formula Used:

Distance = Speed × Time

Calculation:

Speed of car = 2800/35 = 80 km/hr

Speed of bus = 80 × 120/100 + 4 = 100 km/hr

The distance covered by bus = 100 × 7/2 = 350 km

∴ The distance covered by bus is 350 km