In a store, the number of notebooks was
311 of the total number of notebooks and markers together. Reggie sold the notebooks and markers in sets of 1 notebook and 6 markers. After selling all the markers, he still had 50 notebooks left. How many markers were in the store at first?
|
Notebooks |
Markers |
Before |
3x3 = 9 u |
8x3 = 24 u |
Change |
- 1x4 = - 4 u |
- 6x4 = - 24 u |
After |
50 |
0 |
Since all the markers were sold, the number of markers at first and the number of markers sold were the same. Make the number of markers at first and sold the same. LCM of 8 and 6 is 24.
Number of notebooks sold
= 9 u - 4 u
= 5 u
5 u = 50
1 u = 50 ÷ 5 = 10
Number of markers at first
= 24 u
= 24 x 10
= 240
Answer(s): 240