A fruit seller had oranges and starfruits. The ratio of oranges to starfruits was 3 : 11. After
25 of the oranges and 111 starfruits were sold, there were 2 times as many oranges as starfruits left. How many oranges and starfruits were there at first?
| |
Oranges |
Starfruits |
Total |
| Before |
3 u |
11 u |
14 u |
| Change |
- 1.2 u |
- 111 |
|
| After |
1.8 u |
3.6 u |
|
Number of oranges sold
=
25 x 3 u
= 1.2 u
Number of oranges left
= 3 u - 1.2 u
= 1.8 u
Number of starfruits left
= 2 x 1.8 u
= 3.6 u
Number of starfruits sold
= 11 u - 3.6 u
= 7.4 u
7.4 u = 111
1 u = 111 ÷ 7.4 = 15
Number of oranges and starfruits at first
= 3 u + 11 u
= 14 u
= 14 x 15
= 210
Answer(s): 210
