At a supermarket, the ratio of mandarin oranges to lemons was 5 : 9. After Elyse bought four-fifths of the lemons, there was a total of 238 mandarin oranges and lemons left at the supermarket. How many fruits were there at first?
| |
Mandarin Oranges |
Lemons |
Total |
Comparing mandarin oranges
and lemons at first |
5x5 =
25 u |
9x5 =
45 u |
70 u |
Before |
|
5x9 =
45 u |
|
Change |
|
- 4x9 =
- 36 u |
|
After |
25 u |
1x9 =
9 u |
238 |
The number of lemons at first is repeated. Make the number of lemons at first the same. LCM of 9 and 5 is 45.
Total number of fruits left
= 25 u + 9 u
= 34 u
34 u = 238
1 u = 238 ÷ 34 = 7
Number of fruits at first
= 25 u + 45 u
= 70 u
= 70 x 7
= 490
Answer(s): 490
