Question

The number of rooms on the rooms on the ground floor of a building is 4 less than three times the number of roons on the first floor. If the first floor has R Rooms, how many room does the ground floor have?​

Answer 1

Answer:

2x-12

Step-by-step explanation:

The number of rooms on the first floor = x

Now, according to the question,

If we subtract 12 from twice the number of rooms on the first floor. We will get the number of rooms on the ground floor.

Therefore

If number of rooms on ground floor y

Then,

y = 2x – 12

Hence, the number of rooms on the ground floor is equal to 2x – 12 rooms.

Note: In this type of question, use variables to form an expression according to question and solve it to obtain the answer asked.