There were some rows of tables in a tuckshop. Each row had 8 tables. When Winnie brought in 4 extra tables and rearranged all the tables, there were 4 tables in each row and 5 more rows than before. How many tables were there at first?
| |
First
arrangement |
Second
arrangement |
| Number |
1 u |
1 u + 5 |
| Value |
8 |
4 |
| Total value |
8 u |
4 u + 20 |
If another 4 tables are added in the first arrangement, the total number of tables in the first arrangement and the second arrangement will be the same.
8 u + 4 = 4 u + 20
8 u - 4 u = 20 - 4
4 u = 16
1 u = 16 ÷ 4 = 4
Number of tables at first
= 8 u
= 8 x 4
= 32
Answer(s): 32
