Question

Пётр и дмитерий собирают марки. когда у них было одинаковое количество марок, пётр подарил дмитрию половину своей коллекции . во сколько раз теперь у дмитрия больше марок , чем у петра?ответы: А) в 2 раза,Б)в 3 раза,В) в 4 раза,Г) зависит от количества марок.

Answer 1

А) так как у них равное кол-во марок

Answer 2

Problem Analysis

Petr and Dmitry are collecting stamps. When they had an equal number of stamps, Petr gave Dmitry half of his collection. We need to determine how many times Dmitry now has more stamps than Petr.

Solution

Let's assume that initially, both Petr and Dmitry had x stamps each. After Petr gave Dmitry half of his collection, Dmitry would have received x/2 stamps from Petr. Therefore, Dmitry would have a total of x + x/2 = 3x/2 stamps.

To find out how many times Dmitry now has more stamps than Petr, we need to calculate the ratio of Dmitry's stamps to Petr's stamps. This can be done by dividing Dmitry's stamp count by Petr's stamp count:

Ratio = Dmitry's stamps / Petr's stamps = (3x/2) / x = 3/2

Therefore, Dmitry now has 3/2 times more stamps than Petr.

Answer

The correct answer is Б) в 3 раза (in 3 times).

Explanation

When Petr gave Dmitry half of his collection, Dmitry ended up with 3/2 times more stamps than Petr.