Fabian and Caden share a bunch of starfruits in the ratio 7 : 5. If Fabian gives Caden 21 starfruits from his share, they will have the same number of starfruits. How many starfruits does Fabian have at first?
| |
Fabian |
Caden |
| Before |
7 u |
5 u |
| Change |
- 21 |
+ 21 |
| After |
7 u - 21 |
5 u + 21 |
If Fabian gives Caden 21 starfruits from his share, they will have the same number of starfruits.
7 u - 21 = 5 u + 21
7 u - 5 u = 21 + 21
2 u = 42
1 u = 42 ÷ 2 = 21
Number of starfruits that Fabian has
= 7 u
= 7 x 21
= 147
Answer(s): 147
