Jaslyn bought four times as many wafers as John. After Jaslyn ate 3 wafers, she had 12 more wafers than John. How many wafers did they buy altogether?
| |
Jaslyn |
John |
Total |
| Before |
4 u |
1 u |
5 u |
| Change |
- 3 |
|
|
| After |
4 u - 3 |
1 u |
|
The number of wafers that John had remains unchanged.
If John had another 12 wafers in the end, the number of wafers that Jaslyn and John had would be the same.
4 u - 3 = 1 u + 12
4 u - 1 u = 12 + 3
3 u = 15
1 u = 15 ÷ 3 = 5
Total number of wafers
= 4 u + 1 u
= 5 u
= 5 x 5
= 25
Answer(s): 25
