At the office building, Storey D and Storey E had an equal number of tables at first. If 8 tables were removed from Storey E and 3 times as many tables were removed from Storey D as Storey E, the number of tables in Storey E would be 3 times as many as in Storey D. Find the number of tables on each storey.
| |
Storey D |
Storey E |
| Before |
1 u |
1 u |
| Change |
- 24 |
- 8 |
| After |
1 u - 24 |
1 u - 8 |
Number of tables removed from Storey D
= 3 x 8
= 24
Number of tables on Storey D and Storey E at first is the same.
Number of tables on Storey E is 3 times as many as Storey D in the end. If the number of tables on Storey D increases by 3 times, the number of tables on Storey D and Storey E will be the same.
3(1 u - 24) = 1 u - 8
3 u - 72 = 1 u - 8
3 u - 1 u = 72 - 8
2 u = 64
1 u = 64 ÷ 2 = 32
Number of tables in each floor
= 1 u
= 32
Answer(s): 32
