Wendy had an equal number of starfruits and guavas at first. She sold one-third of the guavas and bought another 12 starfruits. In the end, she had thrice as many starfruits as guavas. Find the number of guavas she had at first.
| |
Starfruits |
Guavas |
| Before |
6 u - 12 |
3 u |
| Change |
+ 12 |
- 1 u |
| After |
6 u |
2 u |
The number of starfruits and guavas at first is the same.
6 u - 12 = 3 u
6 u - 3 u = 12
3 u = 12
1 u = 12 ÷ 3 = 4
Number of guavas that Wendy had at first
= 3 u
= 3 x 4
= 12
Answer(s): 12
