A fruit seller had mangosteens and lemons. The ratio of mangosteens to lemons was 4 : 11. After
25 of the mangosteens and 76 lemons were sold, there were 3 times as many mangosteens as lemons left. How many mangosteens and lemons were there at first?
| |
Mangosteens |
Lemons |
Total |
| Before |
4 u |
11 u |
15 u |
| Change |
- 1.6 u |
- 76 |
|
| After |
2.4 u |
7.2 u |
|
Number of mangosteens sold
=
25 x 4 u
= 1.6 u
Number of mangosteens left
= 4 u - 1.6 u
= 2.4 u
Number of lemons left
= 3 x 2.4 u
= 7.2 u
Number of lemons sold
= 11 u - 7.2 u
= 3.8 u
3.8 u = 76
1 u = 76 ÷ 3.8 = 20
Number of mangosteens and lemons at first
= 4 u + 11 u
= 15 u
= 15 x 20
= 300
Answer(s): 300
