At a supermarket, the ratio of limes to dates was 5 : 9. After Marion bought three-fifths of the dates, there was a total of 387 limes and dates left at the supermarket. How many fruits were there at first?
|
Limes |
Dates |
Total |
Comparing limes and dates at first |
5x5 = 25 u |
9x5 = 45 u |
70 u |
Before |
|
5x9 = 45 u |
|
Change |
|
- 3x9 = - 27 u |
|
After |
25 u |
2x9 = 18 u |
387 |
The number of dates at first is repeated. Make the number of dates at first the same. LCM of 9 and 5 is 45.
Total number of fruits left
= 25 u + 18 u
= 43 u
43 u = 387
1 u = 387 ÷ 43 = 9
Number of fruits at first
= 25 u + 45 u
= 70 u
= 70 x 9
= 630
Answer(s): 630