Question

The ratio of speed of boat in upstream and in Stillwater is 1: 3 respectively. The boat takes a total of 10 hours to travel 300 kilometer in downstream and 20 kilometre in upstream is. If speed of a boat in downstream is X kilometer per hour. Then the time taken by it to travel to 288 kilometer in stillwater will be.

A (0.45x+5) hrs.
B (x-8) hrs.
C (0.6x+9)hrs.
D (0.5x-8)hrs.
E (2.5x-4)hrs.
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