Question

ПОЖАЛУЙСТА, ПОМОГИТЕ!!! 1) Для обслуживания пассажиров в городе ежедневно работают 2670 Трамваев, автобусов троллейбусов и такси. Трамваи составляют 1/5 количества всех видов транспорта, автобусы - 1/4 остатка, а остальной транспорт - троллейбусы и такси, причёми троллейбусов в 8 раз меньше, чем такси. Сколько такси работает в городе? 2) Женщины составляют 36% всех рабочих фабрики, а остальные рабочие - мужчины.сколько всего рабочих было на фабрике, если мужчин - 192 3) Ученик в первый день прочитал 30% всей книги, во второй 25% всей книги, в третий - остальные 90 страниц. Сколько страниц в книге?

Answer 1

1)2670:5×1=534(транс.)- составляют трамваи.
2)2670-534=2136(транс.)- остаток.
3)2136:4×1=534(транс.)- составляют автобусы
4)2136-534=1602(транс.)- составляют трол-
лейбусы и такси.
5)8+1=9(частей)- составляют троллейбусы и такси.
6)1602:9=178(транс)- составляют троллейбусы.
7)178×8=1424(трант.)- составляют такси

Answer 2

Question 1:

To find out how many taxis are operating in the city, we need to determine the total number of all types of transportation and then calculate the number of taxis.

Given the information provided: - Trams make up 1/5 of the total number of all types of transportation. - Buses make up 1/4 of the remaining transportation. - The remaining transportation consists of trolleybuses and taxis, with trolleybuses being 8 times fewer than taxis.

Let's calculate the number of taxis:

1. Calculate the total number of trams, buses, and taxis: - Let's assume the total number of all types of transportation is represented by x. - The number of trams is 1/5 of x, which is (1/5)x. - The remaining transportation after considering trams is x - (1/5)x. - The number of buses is 1/4 of the remaining transportation, which is (1/4)(x - (1/5)x).

2. Calculate the number of taxis: - The remaining transportation after considering trams and buses is (x - (1/5)x) - (1/4)(x - (1/5)x). - Trolleybuses are 8 times fewer than taxis, so the number of trolleybuses is (1/9) * (x - (1/5)x) - (1/4)(x - (1/5)x). - The number of taxis is 8 times the number of trolleybuses, which is 8 * [(1/9) * (x - (1/5)x) - (1/4)(x - (1/5)x)].

Let's calculate the number of taxis using the given information:

1. Calculate the total number of all types of transportation: - Let's assume the total number of all types of transportation is x. - The number of trams is 1/5 of x, which is (1/5)x. - The remaining transportation after considering trams is x - (1/5)x, which simplifies to (4/5)x. - The number of buses is 1/4 of the remaining transportation, which is (1/4)(4/5)x, which simplifies to (1/5)x.

2. Calculate the number of taxis: - The remaining transportation after considering trams and buses is (4/5)x - (1/5)x, which simplifies to (3/5)x. - Trolleybuses are 8 times fewer than taxis, so the number of trolleybuses is (1/9) * (3/5)x, which simplifies to (1/15)x. - The number of taxis is 8 times the number of trolleybuses, which is 8 * (1/15)x, which simplifies to (8/15)x.

Therefore, the number of taxis operating in the city is (8/15)x.

Question 2:

To determine the total number of workers in the factory, we need to calculate the number of male workers and then find the total.

Given the information provided: - Women make up 36% of all factory workers. - The remaining workers are men. - The number of men is given as 192.

Let's calculate the total number of workers in the factory:

1. Calculate the number of women: - Women make up 36% of all factory workers, which is 36/100 of the total number of workers. - Let's assume the total number of workers is x. - The number of women is (36/100)x.

2. Calculate the number of men: - The remaining workers after considering women are x - (36/100)x, which simplifies to (64/100)x. - The number of men is given as 192, so we can set up the equation (64/100)x = 192 and solve for x.

Let's solve the equation to find the total number of workers:

1. Set up the equation: - (64/100)x = 192

2. Solve for x: - Multiply both sides of the equation by 100/64 to isolate x. - (100/64)(64/100)x = (100/64)(192) - x = 300

Therefore, the total number of workers in the factory is 300.

Question 3:

To determine the total number of pages in the book, we need to calculate the number of pages read by the student on the first two days and then subtract that from the total number of pages.

Given the information provided: - The student read 30% of the entire book on the first day. - The student read 25% of the entire book on the second day. - The remaining pages read on the third day are 90.

Let's calculate the total number of pages in the book:

1. Calculate the number of pages read on the first two days: - Let's assume the total number of pages in the book is x. - The number of pages read on the first day is 30% of x, which is (30/100)x. - The number of pages read on the second day is 25% of x, which is (25/100)x. - The total number of pages read on the first two days is (30/100)x + (25/100)x.

2. Calculate the remaining pages: - The remaining pages read on the third day are given as 90. - The remaining pages can be calculated as x - [(30/100)x + (25/100)x + 90].

Let's calculate the total number of pages in the book using the given information:

1. Calculate the number of pages read on the first two days: - The number of pages read on the first day is 30% of x, which is (30/100)x. - The number of pages read on the second day is 25% of x, which is (25/100)x. - The total number of pages read on the first two days is (30/100)x + (25/100)x, which simplifies to (55/100)x.

2. Calculate the remaining pages: - The remaining pages read on the third day are given as 90. - The remaining pages can be calculated as x - [(55/100)x + 90].

Therefore, the total number of pages in the book is x - [(55/100)x + 90].