Question

The number of rooms on the ground floor of the building is 10 less

than thrice the number of rooms on the first floor. If the first floor has

x rooms, how many rooms does the ground floor have? Write an

expression for the same.​

Answer 1

Here is your answer

Answer 2

Answer:

$3x-10$

Step-by-step explanation:

Given:

Number of rooms on first floor = $x$

The number of rooms on the ground floor of the building is 10 less than thrice the number of rooms on the first floor.

So, 3 times of $x$ is $3x$.

Subtracting 10 from $3x$ will give the required number.

Therefore, the number of rooms on the ground floor of the building is $3x-10$