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1. A certain river has a current of 4 miles per hour.A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points . What is the speed of the boat in still water ?

  • A. 6 miles per hour
  • B. 6 miles per hour
  • C. 6 miles per hour
  • D. 6 miles per hour

Answer: Option C

Explanation:

Let, boat speed is x

ATQ

X+4=2(x-4)

X+4=2x-8

X=12

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