Asher had 5 times as many silver notebooks as black notebooks. After giving away 3 silver notebooks and buying another 41 black notebooks, he had an equal number of silver and black notebooks. How many silver notebooks did Asher have at first?
| |
Silver notebooks |
Black notebooks |
| Before |
5 u |
1 u |
| Change |
- 3 |
+ 41 |
| After |
5 u - 3 |
1 u + 41 |
The number of silver and black notebooks is the same in the end.
5 u - 3 = 1 u + 41
5 u - 1 u = 41 + 3
4 u = 3 + 41
4 u = 44
1 u = 44 ÷ 4 = 11
Number of silver notebooks that Asher had at first
= 5 u
= 5 x 11
= 55
Answer(s): 55
