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The ratio of speed of boat in still water to speed of stream is 8 : 1. It takes 4 hours by boat to cover 54 km in downstream & 42 km in upstream. Find the downstream speed of boat.
5Q:
The ratio of speed of boat in still water to speed of stream is 8 : 1. It takes 4 hours by boat to cover 54 km in downstream & 42 km in upstream. Find the downstream speed of boat.
- 125 kmphfalse
- 224 kmphfalse
- 321 kmphfalse
- 427 kmphtrue
- 523 kmphfalse
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