A boat can travel with a speed of 13 km /hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream .

A 3 hours
B 5 hours
C 6 hours
D 4 hours

Correct Answer: 4 hours

We know, Downstream = still water + stream = 13 + 4 = 17 ∴ Time 6817 = 4hours
Bissoy MCQ
#গণিত #নৌকা ও স্রোত (Boat and stream) #Janata Bank Ltd #এসিস্ট্যান্ট এক্সিকিউটিভ অফিসার ২৯.১১. ২০১৯

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