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Let the speed of the car in the first 2 hours be x km/h. Distance traveled in the first 2 hours = 2x After 2 hours, the car increases its speed by 20 km/h. The speed during the next 1 hour = (x + 20) km/h. Distance traveled in the next hour = (x + 20) km. The remaining distance is covered in the last hour, so 2x + (x + 20) = 240 km 3x + 20 = 240 3x = 220 x = 220 / 3 = 73.33 km/h Correct Option: c) 73.33 km/h
A car's speed is 20% faster than that of a bike. The car takes 30 minutes longer than the bike to cover 120 km, while the bike covers 80 km. Find the ti...
A 120-meter-long train crosses a pole in 6 seconds. How much time will it take to cross a 180-meter-long platform?
A train service was disrupted due to an accident after a travel of 30 km. The speed was reduced to three-fourths of the original speed. This caused a de...
Average speed of ‘A’ during a 20-hour journey is 28 km/h. If he covered the first 240 km of his journey at a speed of 20 km/h, then find the speed a...
A car travels from point A to point B at an average speed of 80 km/h. On the return journey from point B to point A, its average speed decreases by 25% ...
Average speed of ‘A’ during a 24-hour journey is 36 km/h. If he covered the first 150 km of his journey at a speed of 15 km/h, then find the speed a...
A train traveling at a speed of 72 km/h takes 15 seconds to cross a pole. If the same train crosses a platform in 40 seconds, find the length of the pla...
Buses start from a bus terminal with a speed of 10 km/hr at intervals of 8 minutes. What is the speed of a boy coming from the opposite direction toward...
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...
A thief is noticed by a policeman from a distance of 97 m. The thief starts running and the policeman chases him. The thief and the policeman run at a s...
