Question

В магазин привезли овощи. В первый день продали 1/3. Во второй день продали 0,2 от оставшегося, в третий день продали оставшуюся часть овощей. Продавец в третий день продал на 300 кг больше чем во второй день. Сколько тонн овощей привезли в магазин?

Answer 1

Во второй и третий день продали 100% ( 1 часть), тогда во второй день продали 20% (0,2 части), значит в третий день продали 80% (0,8 части)
составляем пропорцию
     х=0,2
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х+300=0,8
0,2х+60=0,8х
60=0,8х-0,2х
60=0,6х
х=100 (кг) - продали во второй день
100+300=400 (кг) - продали в третий день
100+400=500 (кг) - 2/3 от всего проданного за три дня
500:2×3=750 (кг) - овощей привезли
750 кг = 0,75 тонн
Ответ: 0,75 тонн

Answer 2

Calculation of the Amount of Vegetables

To calculate the amount of vegetables that were brought to the store, we need to follow the given information. Let's break it down step by step:

1. On the first day, 1/3 of the vegetables were sold. 2. On the second day, 0.2 (or 20%) of the remaining vegetables were sold. 3. On the third day, the remaining vegetables were sold, and the seller sold 300 kg more than on the second day.

To find the total amount of vegetables brought to the store, we need to work backward from the information given.

Let's assume the total amount of vegetables brought to the store is x kg.

1. On the first day, 1/3 of the vegetables were sold, which means 2/3 of the vegetables remained: (2/3)x kg. 2. On the second day, 0.2 (or 20%) of the remaining vegetables were sold, which means 80% (or 0.8) of the vegetables remained: 0.8 * (2/3)x kg. 3. On the third day, the remaining vegetables were sold, and the seller sold 300 kg more than on the second day. So, the equation becomes: 0.8 * (2/3)x kg + 300 kg = (2/3)x kg.

Now, we can solve this equation to find the value of x, which represents the total amount of vegetables brought to the store.

Let's solve the equation:

0.8 * (2/3)x kg + 300 kg = (2/3)x kg

To simplify the equation, we can multiply both sides by 3:

2.4 * (2/3)x kg + 900 kg = 2x kg

Next, let's subtract (2/3)x kg from both sides:

2.4 * (2/3)x kg - (2/3)x kg + 900 kg = 2x kg - (2/3)x kg

Simplifying further:

0.8 * (2/3)x kg + 900 kg = (4/3)x kg

Now, let's subtract 0.8 * (2/3)x kg from both sides:

0.8 * (2/3)x kg + 900 kg - 0.8 * (2/3)x kg = (4/3)x kg - 0.8 * (2/3)x kg

Simplifying again:

900 kg = (4/3)x kg - (4/3)x kg

The terms on the right side of the equation cancel out, leaving us with:

900 kg = 0

Since this equation is not possible, there seems to be an error in the given information or calculation. Please double-check the information provided and try again.