Question

. Для укладки 37,5 метров железнодорожного полотна требуется 6 рельсов. Сколько таких рельсов потребуется для укладки 125 м железнодорожного полотна?

Answer 1

1)37,5 : 6 = 6.25
2)125 : 6.25 = 20

Answer 2

Calculating the Number of Rails Needed for Railway Track

To calculate the number of rails needed for laying 125 meters of railway track, we can use the given information that 37.5 meters of track requires 6 rails.

Given: - Length of track for 6 rails: 37.5 meters

Calculation: To find the number of rails needed for 125 meters of track, we can set up a proportion:

37.5 meters is to 6 rails as 125 meters is to x rails.

Using the proportion, we can solve for x:

37.5 / 6 = 125 / x

Cross-multiplying: 37.5x = 6 * 125 37.5x = 750

Solving for x: x = 750 / 37.5 x = 20

Answer: To lay 125 meters of railway track, 20 rails will be needed.