Question

хозяйка купила 32 кг муки и израсходовала в первую неделю 5/12 всей муки, а во вторую 5/8 остатка. Сколько муки осталось у нее после второй недели?

Answer 1

Ответ:

Пошаговое объяснение:

1) 32 * 5/12 = 8 * 5/3 = 40/3 = 13. 1/3 (кг) - израсходовала за 1 неделю

2) 32 - 13. 1/3 = 31. 3/3 - 13. 1/3 = 18. 2/3 (кг) - осталось после 1 недели

3) 5/8 * 18. 2/3 = 5/8 * 56/3 = 5/1 * 7/3 = 35/3 = 11. 2/3 (кг) - израсходовала за 2 неделю

4) 32 - (13. 1/3 + 11. 2/3) =

32 - 24. 3/3 = 32 - 25 = 7 (кг) - осталось после двух недель

Ответ: 7 кг

Answer 2

Problem Analysis

The problem states that the owner bought 32 kg of flour and used 5/12 of it in the first week and 5/8 of the remaining amount in the second week. We need to determine how much flour is left after the second week.

Solution

To solve this problem, we need to calculate the amount of flour used in the first week and the amount of flour used in the second week. Then, we can subtract the total amount used from the initial amount of flour to find the remaining amount.

Let's calculate the amount of flour used in the first week:

Amount of flour used in the first week = (5/12) * 32 kg

Now, let's calculate the amount of flour remaining after the first week:

Flour remaining after the first week = 32 kg - (5/12) * 32 kg

Next, let's calculate the amount of flour used in the second week. We need to consider that the second week uses 5/8 of the remaining amount from the first week:

Amount of flour used in the second week = (5/8) * (Flour remaining after the first week)

Finally, we can calculate the amount of flour remaining after the second week:

Flour remaining after the second week = Flour remaining after the first week - Amount of flour used in the second week

Let's calculate the values:

Amount of flour used in the first week = (5/12) * 32 kg = 13.333 kg

Flour remaining after the first week = 32 kg - 13.333 kg = 18.667 kg

Amount of flour used in the second week = (5/8) * 18.667 kg = 11.667 kg

Flour remaining after the second week = 18.667 kg - 11.667 kg = 7 kg

Therefore, the owner has 7 kg of flour left after the second week.

Answer

The owner has 7 kg of flour left after the second week.