A fruit stall had 3 times as many mangosteens as starfruits. After 4 mangosteens were added, the number of mangosteens became 14 more than the number of starfruits. How many starfruits were there at the fruit stall at first?
|
Mangosteens |
Starfruits |
Before |
3 u |
1 u |
Change |
+ 4 |
|
After |
3 u + 4 |
1 u |
If another 4 starfruits are added, the number of mangosteens and starfruits will be the same.
3 u + 4 = 1 u + 14
3 u - 1 u = 14 - 4
2 u = 10
1 u = 10 ÷ 2 = 5
Number of starfruits at the fruit stall at first
= 1 u
= 5
Answer(s): 5