In a store, the number of punchers was
34 of the total number of punchers and folders together. Warren sold the punchers and folders in sets of 2 punchers and 4 folders. After selling all the folders, he still had 120 punchers left. How many punchers were in the store at first?
| |
Punchers |
Folders |
| Before |
3x4 =
12 u |
1x4 =
4 u |
| Change |
- 2x1 =
- 2 u |
- 4x1 =
- 4 u |
| After |
120 |
0 |
Since all the folders were sold, the number of folders at first and the number of folders sold were the same. Make the number of folders at first and sold the same. LCM of 1 and 4 is 4.
Number of punchers sold
= 12 u - 2 u
= 10 u
10 u = 120
1 u = 120 ÷ 10 = 12
Number of punchers at first
= 12 u
= 12 x 12
= 144
Answer(s): 144
