Question

А)В бочке 20 литров воды , а в цистерне - в пять раз больше . Сколько всего литров воды в бочке и в цистерне ? б)В пачке бумаги 50 листов . Сколько листовв трёх пачках ? Бумагу из четырёх пачек раздали пяти машинисткам поровну . Сколько листов получила каждая ? в)Рубашка стоит 280 рублей , а футболка вчетверо меньше . На сколько рублей рубашка дороже футболки ? г) В книге 450 страниц . Она разбита на 9 одинаковых ( по числу страниц ) глав . Сколько страниц в трёх главах ?

Answer 1

А)20*5+20=120(л)
Ответ:всего 120 литра воды в бочке и цистерне.
б) 1)50*3=150(л)-в трёх пачках.
2)50*4=200(л)-в четырёх пачках.
3)200 //5=40(л)-каждому машинисту.
Ответ:150 листа бумаги в трёх пачках;40 листов бумаги получила каждая машинистка.
в) 280-(280//4)=210(р)-на столько больше.
Ответ:на 210 рублей рубашка дороже футболки.
г) 450//9*3=150(стр)
Ответ:150 страниц в трёх главах.
//-знак разделить
*--знак умножить

Answer 2

Calculations

a) In a barrel, there are 20 liters of water, and in the cistern, there are five times more. To find the total amount of water in the barrel and the cistern, we can use the following equation:

Total water = Water in barrel + Water in cistern

Total water = 20 liters + (20 liters * 5)

Total water = 20 liters + 100 liters

Total water = 120 liters

So, there are 120 liters of water in total, with 20 liters in the barrel and 100 liters in the cistern.

b) In a pack of paper, there are 50 sheets. To find the total number of sheets in three packs, we can use the following equation:

Total sheets = Sheets in one pack * Number of packs

Total sheets = 50 sheets * 3

Total sheets = 150 sheets

So, there are 150 sheets in three packs of paper.

c) A shirt costs 280 rubles, and a t-shirt is four times cheaper. To find out how much more expensive the shirt is than the t-shirt, we can use the following equation:

Price difference = Shirt price - T-shirt price

Price difference = 280 rubles - (280 rubles / 4)

Price difference = 280 rubles - 70 rubles

Price difference = 210 rubles

So, the shirt is 210 rubles more expensive than the t-shirt.

d) A book has 450 pages and is divided into 9 equal chapters. To find out how many pages are in three chapters, we can use the following equation:

Pages in three chapters = Total pages / Number of chapters * Number of chapters

Pages in three chapters = 450 pages / 9 chapters * 3 chapters

Pages in three chapters = 50 pages

So, there are 50 pages in three chapters.

Conclusion

In summary, the total amount of water in the barrel and the cistern is 120 liters, there are 150 sheets in three packs of paper, the shirt is 210 rubles more expensive than the t-shirt, and there are 50 pages in three chapters of the book.