The speed of boat in still water is 8 km/hr more than the speed of current. If a boat takes total 11 hr to cover 32 km downstream and 40 km upstream. Find the speed of boat in still water.
(a) 7.61 km/hr
(b) 6.66 km/hr
(c) 3.27 km/hr
(d) 4.67 km/hr
Sol:
U = B – S = 8
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