A car reached Raipur from Somgarh in 35 min With an average speed of 69 km/h. If the average speed is increased by 36 km/h, how much time will it take to cover the same distance?
Correct Answer: 23 min
Explanation:
Distance between Raipur and Somgarh
= Average speed x Time
= 69 x 35/60= 161/4 km
New speed = (69 + 36) km/h = 105 km/h
∴ Time = Distance/ Speed = 161/4 x 105 h
= 161 x 60/4 x 105min = 23 min
