A boat moves downstream at the rate of 1 km in 6 minutes and upstream at the rate of 1 km in 10 minutes. The speed of current is
Question and options
A boat moves downstream at the rate of 1 km in 6 minutes and upstream at the rate of 1 km in 10 minutes. The speed of current is
- 2 km/hr
- 1 km/hr
- 1.5 km/hr
- 2.5 km/hr
Answer and explanation
Correct answer: A - 2 km/hr
Downstream speed = 1 km per 6 min = 10 km/h; upstream = 1 km per 10 min = 6 km/h. Current = (10 - 6)/2 = 2 km/h.
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CUSAT CAT LLM
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