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How many apartments of each type are there in an apartment complex that has a total of 250 apartments, with 50 more two-bedroom apartments than one-bedroom apartments?

A) 100 one-bedroom apartments and 150 two-bedroom apartments
B) 125 one-bedroom apartments and 125 two-bedroom apartments
C) 75 one-bedroom apartments and 175 two-bedroom apartments
D) 90 one-bedroom apartments and 160 two-bedroom apartments
E) 80 one-bedroom apartments and 170 two-bedroom apartments

1 Answer

3 votes

Final answer:

By setting up a system of equations with x representing one-bedroom apartments and y representing two-bedroom apartments, and solving for both variables, we determine there are 100 one-bedroom apartments and 150 two-bedroom apartments in the apartment complex.

Step-by-step explanation:

To determine how many apartments of each type there are in the apartment complex, we need to set up a system of equations based on the information provided.

Let x be the number of one-bedroom apartments, and y be the number of two-bedroom apartments. According to the question, the total number of apartments is 250, so we have: x + y = 250 (1)

It is also given that there are 50 more two-bedroom apartments than one-bedroom apartments, so we can write another equation as: y = x + 50 (2)

Now we will substitute equation (2) into equation (1) to solve for x:

x + (x + 50) = 250

2x + 50 = 250

2x = 200

x = 100

Now we will plug the value of x into equation (2) to find y:

y = 100 + 50

y = 150

Therefore, there are 100 one-bedroom apartments and 150 two-bedroom apartments in the apartment complex, making option A correct.

User Anver Sadhat
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