A fruit seller had mangoes and starfruits. The ratio of mangoes to starfruits was 3 : 11. After
12 of the mangoes and 70 starfruits were sold, there were 4 times as many mangoes as starfruits left. How many mangoes and starfruits were there at first?
|
Mangoes |
Starfruits |
Total |
Before |
3 u |
11 u |
14 u |
Change |
- 1.5 u |
- 70 |
|
After |
1.5 u |
6 u |
|
Number of mangoes sold
=
12 x 3 u
= 1.5 u
Number of mangoes left
= 3 u - 1.5 u
= 1.5 u
Number of starfruits left
= 4 x 1.5 u
= 6 u
Number of starfruits sold
= 11 u - 6 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Number of mangoes and starfruits at first
= 3 u + 11 u
= 14 u
= 14 x 14
= 196
Answer(s): 196