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The speed of boat in still water is 18 km/hr and speed of the stream is 3 km/hr. what is the distance travelled by boat upstream in 12 minutes.1. 2 km2. 5 km3. 7 km4. 3 km5. 8 km |
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Answer» Correct Answer - Option 4 : 3 km Given: speed of boat in still water = 18 km/hr speed of the stream = 3 km/hr Calculation: Speed of boat in upstream = 18 – 3 = 15 km/hr So , distance travelled by boat in upstream in 12 minutes = 15 × 12/60 = 3 km |
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