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If a boat can cover 250 km downstream and 150 km upstream in 5 hours each, then how much distance will a wooden object
flowing in the river cover in 6 hours?
54 km
50 km
40 km
60 km
- The boat covers 250 km downstream in 5 hours, so the downstream speed is 50 km/h.
- It covers 150 km upstream in 5 hours, so the upstream speed is 30 km/h.
- To find the speed of the current, we use the average of the differences between these speeds.
- Speed of the current = (50 km/h - 30 km/h) / 2 = 10 km/h.
- A wooden object floating in the river moves with the current speed.
- In 6 hours, the distance covered by the object is 10 km/h * 6 = 60 km.
- Option 4: 60 km
.
By: santosh ProfileResourcesReport error
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