There were some rows of chairs in a basketball court. Each row had 8 chairs. When Gabby brought in 6 extra chairs and rearranged all the chairs, there were 6 chairs in each row and 3 more rows than before. How many chairs were there at first?
|
First arrangement |
Second arrangement |
Number |
1 u |
1 u + 3 |
Value |
8 |
6 |
Total value |
8 u |
6 u + 18 |
If another 6 chairs are added in the first arrangement, the total number of chairs in the first arrangement and the second arrangement will be the same.
8 u + 6 = 6 u + 18
8 u - 6 u = 18 - 6
2 u = 12
1 u = 12 ÷ 2 = 6
Number of chairs at first
= 8 u
= 8 x 6
= 48
Answer(s): 48