PSLEThere were a total of 135 tables and benches in a basketball court. There were 2 times as many benches as tables. After 14 benches and some tables were removed, there were 4 times as many benches as tables left. How many tables were removed from the basketball court?
|
Tables |
Benches |
Total |
Before |
1 u |
2 u |
135 |
Change |
- ? |
- 14 |
|
After |
1 p |
4 p |
|
Total number of tables and benches
= 2 u + 1 u
= 3 u
3 u = 135
1 u = 135 ÷ 3 = 45
Number of benches at first
= 2 u
= 2 x 45
= 90
Number of benches left
= 90 - 14
= 76
4 p = 76
1 p = 76 ÷ 4 = 19
Number of tables removed from the basketball court
= 45 - 19
= 26
Answer(s): 26