At a mart, the ratio of avocados to plums was 9 : 10. After Cindy bought three-fifths of the plums, there was a total of 143 avocados and plums left at the mart. How many fruits were there at first?
| |
Avocados |
Plums |
Total |
Comparing avocados
and plums at first |
9x1 =
9 u |
10x1 =
10 u |
19 u |
Before |
|
5x2 =
10 u |
|
Change |
|
- 3x2 =
- 6 u |
|
After |
9 u |
2x2 =
4 u |
143 |
The number of plums at first is repeated. Make the number of plums at first the same. LCM of 10 and 5 is 10.
Total number of fruits left
= 9 u + 4 u
= 13 u
13 u = 143
1 u = 143 ÷ 13 = 11
Number of fruits at first
= 9 u + 10 u
= 19 u
= 19 x 11
= 209
Answer(s): 209
