Question

За три дня было продано 830кг апельсинов.Во второй день продали на 30кг меньше,чем в первый,а в третий-в 3 раза больше,чем во второй .Сколько килограммов апельсинов было продано в первый день

Answer 1

Пусть х- продали апельсинов во второй день, тогда в первый день х+30, в третий 3х.
По условию всего было 830 кг апельсинов.
Составим и решим уравнение.
х+30+3х=830
4х+30=830
4х+830-30
4х=800
х=800:4
х=200(кг)- продали во второй день
Значит в первый день продали
200+30=230(кг)
Ответ: 230 кг.

Answer 2

Calculating the Amount of Oranges Sold Each Day

To calculate the amount of oranges sold each day, we can use the information provided.

1. Total Oranges Sold in Three Days: 830 kg 2. Oranges Sold on the Second Day: 30 kg less than the First Day 3. Oranges Sold on the Third Day: 3 times more than the Second Day

Let's denote the amount of oranges sold on the first day as x kg.

On the second day, the amount sold is 30 kg less than the first day, so it is (x - 30) kg.

On the third day, the amount sold is 3 times more than the second day, so it is 3(x - 30) kg.

We know that the total amount sold in three days is 830 kg, so we can form the equation:

x + (x - 30) + 3(x - 30) = 830

Let's solve for x to find the amount of oranges sold on the first day.

Solving for the Amount of Oranges Sold on the First Day

x + (x - 30) + 3(x - 30) = 830
x + x - 30 + 3x - 90 = 830
5x - 120 = 830
5x = 950
x = 190

Answer:

The amount of oranges sold on the first day was 190 kg.