A fruit seller had lemons and persimmons. The ratio of lemons to persimmons was 4 : 9. After
25 of the lemons and 9 persimmons were sold, there were 3 times as many lemons as persimmons left. How many lemons and persimmons were there at first?
| |
Lemons |
Persimmons |
Total |
| Before |
4 u |
9 u |
13 u |
| Change |
- 1.6 u |
- 9 |
|
| After |
2.4 u |
7.2 u |
|
Number of lemons sold
=
25 x 4 u
= 1.6 u
Number of lemons left
= 4 u - 1.6 u
= 2.4 u
Number of persimmons left
= 3 x 2.4 u
= 7.2 u
Number of persimmons sold
= 9 u - 7.2 u
= 1.8 u
1.8 u = 9
1 u = 9 ÷ 1.8 = 5
Number of lemons and persimmons at first
= 4 u + 9 u
= 13 u
= 13 x 5
= 65
Answer(s): 65
