Let the length of the tunnel be ‘x’ meter. Speed = 72 × (5/18) m/sec = 20 m/sec Time = 1 minute = 60 seconds. Let the length of the tunnel be x metres. Then, (520 + x)/60 = 20 =>(520 + x) = 1200 => x = 680 m
In a kilometre race, A beats B by 30 metres or 6 seconds. Find the time taken by A to finish the race?
A man travels 450 km to his home partly by train and partly by car. He takes 8 hrs 40 minutes if he travels 240 km by train and rest by car. He takes 20...
Rahul travels a certain distance with a constant speed of 18 km/h and reaches 3 hours late. If he had travelled at a constant spe...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 24 km/hr and 12 km/hr, respectively. If the di...
The two places are 60 km apart. A and B start walking towards each other at the same time and meet each other after 6 hours. Had A traveled with 2/3rd o...
A driver of truck sees an ambulance 160 meters ahead of him. After 20 seconds the ambulance is 140 meters behind. If the speed of the truck is 80 kmp/h,...
Walking at 3/ 4 of his usual speed, a man is 1 1/ 2 hr late. His usual time to cover the same distance (in hours) is?
A train that is 120 m in length runs at 90 km/h. How much time will the train take to cross a bridge that is 180 m in length?
The speed of two cars A and B are in the ratio of 15:17 respectively. Car A travels 10 km less than the car B in the same time duration. What was the di...
X started to run from point ‘A’ to ‘B’ at a speed of 25 km/hr at 9:00 am and Y started to run from point ‘B’ to ‘A’ at a speed of 15 km/...
