A fruit stall had 3 times as many grapefruits as pomegranates. After 4 grapefruits were added, the number of grapefruits became 28 more than the number of pomegranates. How many pomegranates were there at the fruit stall at first?
| |
Grapefruits |
Pomegranates |
| Before |
3 u |
1 u |
| Change |
+ 4 |
|
| After |
3 u + 4 |
1 u |
If another 4 pomegranates are added, the number of grapefruits and pomegranates will be the same.
3 u + 4 = 1 u + 28
3 u - 1 u = 28 - 4
2 u = 24
1 u = 24 ÷ 2 = 12
Number of pomegranates at the fruit stall at first
= 1 u
= 12
Answer(s): 12
