Oscar and Valen share a bunch of starfruits in the ratio 10 : 7. If Oscar gives Valen 30 starfruits from his share, they will have the same number of starfruits. How many starfruits does Oscar have at first?
| |
Oscar |
Valen |
| Before |
10 u |
7 u |
| Change |
- 30 |
+ 30 |
| After |
10 u - 30 |
7 u + 30 |
If Oscar gives Valen 30 starfruits from his share, they will have the same number of starfruits.
10 u - 30 = 7 u + 30
10 u - 7 u = 30 + 30
3 u = 60
1 u = 60 ÷ 3 = 20
Number of starfruits that Oscar has
= 10 u
= 10 x 20
= 200
Answer(s): 200
