Nora bought thrice as many muffins as Warren. After Nora ate 3 muffins, she had 11 more muffins than Warren. How many muffins did they buy altogether?
| |
Nora |
Warren |
Total |
| Before |
3 u |
1 u |
4 u |
| Change |
- 3 |
|
|
| After |
3 u - 3 |
1 u |
|
The number of muffins that Warren had remains unchanged.
If Warren had another 11 muffins in the end, the number of muffins that Nora and Warren had would be the same.
3 u - 3 = 1 u + 11
3 u - 1 u = 11 + 3
2 u = 14
1 u = 14 ÷ 2 = 7
Total number of muffins
= 3 u + 1 u
= 4 u
= 4 x 7
= 28
Answer(s): 28
