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we can say that, Upstream speed of the Ship = 5 – 3 = 2 km/hr Downstream speed of the Ship = 5 + 3 = 8 km/hr ATQ, (d/2) – (d/8) = 12 Or, 4d – d = 12 × 8 Or, d = 96/3 = 32 Therefore, 2d = 64 km
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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...
