A fruit seller had mangoes and passion fruits. The ratio of mangoes to passion fruits was 3 : 7. After
12 of the mangoes and 20 passion fruits were sold, there were 3 times as many mangoes as passion fruits left. How many mangoes and passion fruits were there at first?
|
Mangoes |
Passion Fruits |
Total |
Before |
3 u |
7 u |
10 u |
Change |
- 1.5 u |
- 20 |
|
After |
1.5 u |
4.5 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 passion fruits left
= 3 x 1.5 u
= 4.5 u
Number of passion fruits sold
= 7 u - 4.5 u
= 2.5 u
2.5 u = 20
1 u = 20 ÷ 2.5 = 8
Number of mangoes and passion fruits at first
= 3 u + 7 u
= 10 u
= 10 x 8
= 80
Answer(s): 80