Question

Ответте плиииз!!На тарелке лежали сливы.Сначала Олег взял половину всех слив.Потом Маша взяла половину оставшихся слив.После этого на тарелке осталось 5 слив.Сколько слив было на тарелке в начале???????!!!!!!

Answer 1

5*2=10
10*2=20
Ответ: 20 слив

Answer 2

Calculation of the Number of Plums on the Plate

To calculate the number of plums that were initially on the plate, we can work backwards from the given information.

1. Oleg took half of all the plums on the plate. 2. After Oleg took his share, Masha took half of the remaining plums. 3. After Masha took her share, there were 5 plums left on the plate.

Let's denote the initial number of plums on the plate as x.

According to the given information, we can set up the following equation:

x - (x/2) - (x/4) = 5

Simplifying the equation:

4x/4 - 2x/4 - x/4 = 5

(4x - 2x - x)/4 = 5

x/4 = 5

Multiplying both sides of the equation by 4:

x = 20

Therefore, there were 20 plums on the plate initially.