Two points on a river are 10.4km apart and one stands 400metres above the other. What is the gradient along the river between the points?

Pre2009

1 year ago

The gradient along the river can be calculated by dividing the change in elevation (400 meters) by the distance between the points (10.4 kilometers).

Here's how to do it:

Convert distance to meters: 10.4 kilometers * 1000 meters/kilometer = 10400 meters
Calculate the gradient: 400 meters / 10400 meters = 0.03846
Express the gradient as a ratio: 1 : 0.03846 ≈ 1 : 26
Therefore, the gradient along the river between the points is approximately 1 in 26.

So, the answer is C: 1 in 26.