Question

Волшебная шапка за некоторое время исполняет 15 желаний ,расходуя на каждое желание по 4 минуты.Сколько желаний успеет она исполнить за это же время,расходуя на каждое желание по 3 минуты? краткая запись

Answer 1

Всего 15 желаний
1 желание - 4 минуты
? желаний - 3 минуты
Найти ?
1) 15×4=60 (мин) - требуется для исполнения 15 желаний
2) 60÷3=30(желаний)
Ответ: 30 желаний

Answer 2

Calculation of Wishes

To calculate the number of wishes that can be granted by the magic hat, we need to compare the time it takes to grant each wish under two different scenarios: one where each wish takes 4 minutes to grant, and another where each wish takes 3 minutes to grant.

Let's assume that the magic hat has a fixed amount of time to grant wishes. In the given scenario, the hat can grant 15 wishes, with each wish taking 4 minutes to grant.

To find out how many wishes the hat can grant when each wish takes 3 minutes, we can use the concept of proportionality. We can set up a proportion to compare the time taken for each wish in the two scenarios:

4 minutes per wish = 15 wishes 3 minutes per wish = ? wishes

To find the number of wishes that can be granted in the second scenario, we can cross-multiply and solve for the unknown:

4 minutes per wish * ? wishes = 15 wishes * 3 minutes per wish

Simplifying the equation:

4 * ? = 15 * 3

Now, we can solve for the unknown:

? = (15 * 3) / 4

Calculating the value:

? = 45 / 4

? = 11.25

Therefore, the magic hat can grant approximately 11 wishes when each wish takes 3 minutes to grant.

Please note that the result is an approximation since we cannot have a fraction of a wish.