A fruit seller had oranges and mangosteens. The ratio of oranges to mangosteens was 2 : 11. After
14 of the oranges and 40 mangosteens were sold, there were 4 times as many oranges as mangosteens left. How many oranges and mangosteens were there at first?
|
Oranges |
Mangosteens |
Total |
Before |
2 u |
11 u |
13 u |
Change |
- 0.5 u |
- 40 |
|
After |
1.5 u |
6 u |
|
Number of oranges sold
=
14 x 2 u
= 0.5 u
Number of oranges left
= 2 u - 0.5 u
= 1.5 u
Number of mangosteens left
= 4 x 1.5 u
= 6 u
Number of mangosteens sold
= 11 u - 6 u
= 5 u
5 u = 40
1 u = 40 ÷ 5 = 8
Number of oranges and mangosteens at first
= 2 u + 11 u
= 13 u
= 13 x 8
= 104
Answer(s): 104