Nora bought five times as many puffs as Warren. After Nora ate 3 puffs, she had 9 more puffs than Warren. How many puffs did they buy altogether?
| |
Nora |
Warren |
Total |
| Before |
5 u |
1 u |
6 u |
| Change |
- 3 |
|
|
| After |
5 u - 3 |
1 u |
|
The number of puffs that Warren had remains unchanged.
If Warren had another 9 puffs in the end, the number of puffs that Nora and Warren had would be the same.
5 u - 3 = 1 u + 9
5 u - 1 u = 9 + 3
4 u = 12
1 u = 12 ÷ 4 = 3
Total number of puffs
= 5 u + 1 u
= 6 u
= 6 x 3
= 18
Answer(s): 18
