There were some rows of tables in a school field. Each row had 11 tables. When Hazel brought in 8 extra tables and rearranged all the tables, there were 6 tables in each row and 3 more rows than before. How many tables were there at first?
| |
First
arrangement |
Second
arrangement |
| Number |
1 u |
1 u + 3 |
| Value |
11 |
6 |
| Total value |
11 u |
6 u + 18 |
If another 8 tables are added in the first arrangement, the total number of tables in the first arrangement and the second arrangement will be the same.
11 u + 8 = 6 u + 18
11 u - 6 u = 18 - 8
5 u = 10
1 u = 10 ÷ 5 = 2
Number of tables at first
= 11 u
= 11 x 2
= 22
Answer(s): 22
