A boat can travel with a speed of 10 km/hr in still water.

A boat can travel with a speed of 10 km/hr in still water. If the speed of the stream is 8 km/hr, find the time taken by the boat to go 54 km downstream.

Quiz

Answer/Solution

3 hr

Steps/Work

speed of boat in still water = 10 km/hr
speed of the stream = 8 km/hr
Speed downstream = (10+8) = 18 km/hr
Time taken to travel 68 km downstream = 54⁄18 = 17⁄4 = 3 hours
Answer is C

Physics Calculator / Auto Solver

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

Calculated Answer

3

Step by Step Solution

In order to solve problem, you must evaluate n2 / (n0 + n1).

n0 =10
n1 =8
n2 =54