Question

The speed of current is 18 km/hr. If the speed of the boat in still water had been 7 km/hr more than the original speed, then it would take 8 hours to cover 440 km in downstream. Find the original speed of the boat in still water (in km/hr).

Q: Answer-The speed of current is 18 km/hr. If the speed of the boat in still water had been 7 km/hr more than...

ATQ, Let the speed of the boat in still water be x kmhr. According to the question, x 7 18 440 8 Or, x 25 55 So, x 55 - 25 30 kmhr Final Answer 30 kmhr

A 17 km/hr

B 27 km/hr

C 30 km/hr

D 22 km/hr

E None of these

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The speed of current is 18 km/hr. If the speed of the boat in still water had been 7 km/hr more than the original speed, then it would take 8 hours to cover 440 km in downstream. Find the original speed of the boat in still water (in km/hr).

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