At a market, the ratio of mangosteens to pomegranates was 3 : 10. After Min bought four-fifths of the pomegranates, there was a total of 25 mangosteens and pomegranates left at the market. How many fruits were there at first?
|
Mangosteens |
Pomegranates |
Total |
Comparing mangosteens and pomegranates at first |
3x1 = 3 u |
10x1 = 10 u |
13 u |
Before |
|
5x2 = 10 u |
|
Change |
|
- 4x2 = - 8 u |
|
After |
3 u |
1x2 = 2 u |
25 |
The number of pomegranates at first is repeated. Make the number of pomegranates at first the same. LCM of 10 and 5 is 10.
Total number of fruits left
= 3 u + 2 u
= 5 u
5 u = 25
1 u = 25 ÷ 5 = 5
Number of fruits at first
= 3 u + 10 u
= 13 u
= 13 x 5
= 65
Answer(s): 65