A fruit seller had lemons and starfruits. The ratio of lemons to starfruits was 3 : 10. After
12 of the lemons and 112 starfruits were sold, there were 2 times as many lemons as starfruits left. How many lemons and starfruits were there at first?
|
Lemons |
Starfruits |
Total |
Before |
3 u |
10 u |
13 u |
Change |
- 1.5 u |
- 112 |
|
After |
1.5 u |
3 u |
|
Number of lemons sold
=
12 x 3 u
= 1.5 u
Number of lemons left
= 3 u - 1.5 u
= 1.5 u
Number of starfruits left
= 2 x 1.5 u
= 3 u
Number of starfruits sold
= 10 u - 3 u
= 7 u
7 u = 112
1 u = 112 ÷ 7 = 16
Number of lemons and starfruits at first
= 3 u + 10 u
= 13 u
= 13 x 16
= 208
Answer(s): 208