Question

Ребята, решите задачу:В магазин привезли 140 1/4кг моркови. В понедельник было продано 1 3/8 раза меньше, чем привезли в магазин, а во вторник - в 2,5 раза меньше, чем привезли. Сколько килограммов моркови продали за понедельник и вторник?

Answer 1

1)140 1\4:1 3\8=561\4*8\11=102кг-в понедельник.
2)140 1\4:2 1\2=561\4*2\5=561\10=56 1\10кг-во вторник.
3)102+56 1\10=101 10\10+56 1\10=157 11\10=158 1\10кг-за два дня.

Answer 2

Problem Analysis

To solve this problem, we need to find out how much carrots were sold on Monday and Tuesday. We are given that 140 1/4 kg of carrots were delivered to the store. On Monday, 1 3/8 times less carrots were sold than what was delivered, and on Tuesday, 2.5 times less carrots were sold than what was delivered. We need to calculate the total weight of carrots sold on Monday and Tuesday.

Solution

Let's break down the problem step by step:

1. Calculate the total weight of carrots delivered to the store: - 140 1/4 kg of carrots were delivered.

2. Calculate the weight of carrots sold on Monday: - On Monday, 1 3/8 times less carrots were sold than what was delivered. - To find the weight of carrots sold on Monday, we need to multiply the weight of carrots delivered by 1 3/8. - To multiply a fraction by a whole number, we multiply the numerator by the whole number and keep the denominator the same. - 1 3/8 is equal to (1 * 8 + 3) / 8 = 11/8. - Therefore, the weight of carrots sold on Monday is (140 1/4) * (11/8).

3. Calculate the weight of carrots sold on Tuesday: - On Tuesday, 2.5 times less carrots were sold than what was delivered. - To find the weight of carrots sold on Tuesday, we need to multiply the weight of carrots delivered by 2.5. - Therefore, the weight of carrots sold on Tuesday is (140 1/4) * 2.5.

4. Calculate the total weight of carrots sold on Monday and Tuesday: - To find the total weight of carrots sold, we need to add the weight of carrots sold on Monday and Tuesday. - Therefore, the total weight of carrots sold is (140 1/4) * (11/8) + (140 1/4) * 2.5.

Calculation

Let's calculate the weight of carrots sold on Monday and Tuesday:

Weight of carrots delivered = 140 1/4 kg

Weight of carrots sold on Monday = (140 1/4) * (11/8