I want to ask a question There are 75 households in building 5, with two rooms and one living room and three rooms and two living rooms. The number of two rooms and one living room is twice that of three rooms and two living rooms. How many households are there in these two kinds of rooms?

I want to ask a question There are 75 households in building 5, with two rooms and one living room and three rooms and two living rooms. The number of two rooms and one living room is twice that of three rooms and two living rooms. How many households are there in these two kinds of rooms?

There are three rooms, two halls, X households and two rooms, one hall, 2x households
x+2x=75
3x=75
x=25
2x=50
There are 25 rooms with three rooms and two halls, 50 rooms with two rooms and one hall

Six practical questions in Mathematics
1. A company allocates computers to its employees. If three people share a computer, one is missing. If four people share a computer, three people share a computer. How many computers does the company have and how many employees do it have?

Suppose the number of employees is x and the number of computers is y. according to the meaning of the question, we can get the equations
X/3=Y+1
(X+1)/4=Y
The result is: x = 15, y = 4
So the company has four computers and 15 employees

1. Xiao Ming walked 7 / 9 kilometers in 1 / 5 hour. How many kilometers per hour did he walk?
2. Dad goes to work by motorcycle, 50 kilometers per hour, 3 / 25 hours to the unit. If he goes by bike, it takes 11 / 50 hours from the original road to the unit. How many kilometers per hour does Dad go by bike?

1、7/9÷1/5
2、50×3/25÷11/50