Question

В многоквартирном доме 36 трёхкомнатных квартир, а двухкомнатных на 25% больше, чем трёхкомнатных. Сколько двух и трёхкомнатных квартир вместе в этом доме ?

Answer 1

1) 36+36*0,25=36+9=45 двухкомнатных квартир
2) 36+45=81 двух- и трёхкомнатных квартир вместе

Answer 2

Problem Analysis

We are given that there are 36 three-room apartments in a multi-story building, and the number of two-room apartments is 25% more than the number of three-room apartments. We need to determine the total number of two-room and three-room apartments in the building.

Solution

Let's assume the number of three-room apartments is x. According to the given information, the number of two-room apartments is 25% more than the number of three-room apartments, which means the number of two-room apartments is 1.25x.

To find the total number of apartments, we need to add the number of two-room and three-room apartments together.

Let's calculate the values:

Number of three-room apartments (x) = 36

Number of two-room apartments = 1.25x = 1.25 * 36 = 45

Total number of apartments = Number of three-room apartments + Number of two-room apartments = 36 + 45 = 81

Therefore, there are a total of 81 apartments in the building, with 36 three-room apartments and 45 two-room apartments.

Answer

There are 36 three-room apartments and 45 two-room apartments in the building, making a total of 81 apartments.