An apartment building contains 12 units consisting of one-and-two-bedroom apartments that rent for $1360 and $1450 per month, respectively. When all units are rented, the total monthly income is $49,500.What is the number of two-bedroom apartments?
x: number of one-bedroom apartments y: number two bedroom apartments
x + y = 12 1360x + 1450y = 49,500
x = 12 - y
1360[12 - y] + 1450y = 49500
16320 - 1360y + 1450y = 49500
90y = 33180
y = 33180/90 y = 368.7
As per my understanding, It is weird that the result is not an integer number. I think that either the information is wrong or the person who created the problem didn't realize this result.
