At the office building, Level R and Level S had an equal number of chairs at first. If 6 chairs were removed from Level S and 4 times as many chairs were removed from Level R as Level S, the number of chairs in Level S would be 4 times as many as in Level R. Find the number of chairs on each level.
| |
Level R |
Level S |
| Before |
1 u + 24 |
4 u + 6 |
| Change |
- 24 |
- 6 |
| After |
1 u |
4 u |
Number of chairs removed from Level R
= 4 x 6
= 24
Number of chairs on Level R and Level S at first is the same.
4 u + 6 = 1 u + 24
4 u - 1 u = 24 - 6
3 u = 18
1 u = 18 ÷ 3 = 6
Number of chairs on each level
= 1 u + 24
= 6 + 24
= 30
Answer(s): 30
