Charlie had starfruits and oranges. The ratio of starfruits to oranges was 6 : 5. After
34 of the starfruits and 72 oranges were sold, there were 3 times as many starfruits as oranges left. How many starfruits and oranges were sold?
| |
Starfruits |
Oranges |
Comparing starfruits
and oranges at first |
6x2 =
12 u |
5x2 =
10 u |
| Before |
4x3 =
12 u |
|
| Change |
- 3x3 =
- 9 u |
- 72 |
| After |
1x3 =
3 u |
|
Comparing starfruits
and oranges in the end |
3 u |
1 u |
The number of starfruits at first is repeated. Make the number of starfruits at first the same. LCM of 6 and 4 is 12.
Number of oranges sold
= 10 u - 1 u
= 9 u
9 u = 72
1 u = 72 ÷ 9 = 8
Number of starfruits and oranges sold
= 9 u + 72
= 9 x 8 + 72
= 72 + 72
= 144
Answer(s): 144
