At a supermarket, the ratio of lemons to limes was 9 : 10. After Natalie bought two-thirds of the limes, there was a total of 259 lemons and limes left at the supermarket. How many fruits were there at first?
| |
Lemons |
Limes |
Total |
Comparing lemons
and limes at first |
9x3 =
27 u |
10x3 =
30 u |
57 u |
Before |
|
3x10 =
30 u |
|
Change |
|
- 2x10 =
- 20 u |
|
After |
27 u |
1x10 =
10 u |
259 |
The number of limes at first is repeated. Make the number of limes at first the same. LCM of 10 and 3 is 30.
Total number of fruits left
= 27 u + 10 u
= 37 u
37 u = 259
1 u = 259 ÷ 37 = 7
Number of fruits at first
= 27 u + 30 u
= 57 u
= 57 x 7
= 399
Answer(s): 399
