Question

Speed of current is 25% of speed of boat in still water, if boat travelled 45 km downstream and returned back in total 12 hr. then find speed of boat in still water?

Q: Speed of current is 25% of speed of boat in still water, if boat travelled 45 km downstream and retu

Speed of boat in still water : Speed of current = 100x : 25x => 4x : x According to question, => 45/(4x + x) + 45/(4x – x) = 12 => (135 + 225)/15x = 12 => x = 360/180 = 2 Speed of boat in still water = 4 × 2 = 8 km/hr

A 4km/hr

B 8km/hr

C 6km/hr

D 10km/hr

E 12km/hr

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Speed of current is 25% of speed of boat in still water, if boat travelled 45 km downstream and returned back in total 12 hr. then find speed of boat in still water?

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