Question

В составе товарного поезда 80 вагонов, причем крытых вагонов 35 .цистерн 25. а остальные вагоны- платформы.какую часть всех вагонов оставляют крытые вагоны? во сколько раз платформы меньше. чем крытых вагонов? сколько процентов всего состава составляют цистерн

Answer 1

Крытых - 35/80=7/12=0,4375 от всех.
Платформ меньше крытых в 35/(80-35-25)=7/4=1,75 раз.
Цистерн - 25*100/80=31,25%.

Answer 2

Calculation of the Proportion of Covered Wagons

To calculate the proportion of covered wagons in the total train composition, we need to divide the number of covered wagons by the total number of wagons and express it as a percentage.

Given that the total number of wagons in the train is 80 and the number of covered wagons is 35, we can calculate the proportion as follows:

Proportion of covered wagons = (Number of covered wagons / Total number of wagons) * 100

Proportion of covered wagons = (35 / 80) * 100 = 43.75%

Therefore, the covered wagons make up approximately 43.75% of the total train composition.

Comparison of Platforms and Covered Wagons

To determine how many times the number of platforms is smaller than the number of covered wagons, we need to subtract the number of covered wagons from the total number of wagons.

Given that the total number of wagons is 80 and the number of covered wagons is 35, we can calculate the difference as follows:

Number of platforms = Total number of wagons - Number of covered wagons

Number of platforms = 80 - 35 = 45

Therefore, the number of platforms is 45.

To find out how many times the number of platforms is smaller than the number of covered wagons, we can divide the number of covered wagons by the number of platforms:

Ratio of platforms to covered wagons = Number of platforms / Number of covered wagons

Ratio of platforms to covered wagons = 45 / 35 = 1.2857

Therefore, the number of platforms is approximately 1.29 times smaller than the number of covered wagons.

Percentage of Tank Wagons in the Train Composition

To calculate the percentage of tank wagons in the train composition, we need to divide the number of tank wagons by the total number of wagons and express it as a percentage.

Given that the total number of wagons in the train is 80 and the number of tank wagons is 25, we can calculate the proportion as follows:

Proportion of tank wagons = (Number of tank wagons / Total number of wagons) * 100

Proportion of tank wagons = (25 / 80) * 100 = 31.25%

Therefore, the tank wagons make up approximately 31.25% of the total train composition.

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