In one hour, a boat goes 15 km along the stream and 5 km against the stream.

In one hour, a boat goes 15 km along the stream and 5 km against the stream. The speed of the boat in still water (in km/hr) is:

Answer/Solution

10

Steps/Work

Sol.
Speed in still water = 1/2 (15+5) kmph = 10 kmph.
Answer C

Physics Calculator / Auto Solver

In one hour, a boat goes km along the stream and km against the stream. The speed of the boat in still water ( in km / hr ) is :

Calculated Answer

10

Step by Step Solution

In order to solve problem, you must evaluate (n₀ + n₁) / 2.

n₀ =	15
n₁ =	5

(n₀ + n₁) / 2
Evaluate n₀ + n₁ = 20
20 / 2
Evaluate 20 / 2 = 10
10
The answer to the problem and the result of (n₀ + n₁) / 2 is 10