Postal or Sorting Assistants Model Paper 7 With Solutions

Question : 18 of 100

Marks: +1, -0

River is running at 2 kmph. It took a man twice as long to row up as to row down the river. The rate (in km/hr) of the man in still water is :

Solution:

(d) Let speed of man in still water be x km/h.

1/{x-2}=2/{x+2}

x+2=2x-4
x=6

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