At a supermarket, 20% of the fish were red snappers and the rest were parrot fish. 40% of the parrot fish were sold. What was the ratio of the number of parrot fish to the number of red snappers in the end?
|
Red Snappers |
Parrot Fish |
Compare between red snappers and parrot fish at first |
1x5 |
4x5 |
Before |
|
5x4 |
Change |
|
- 2x4 |
After |
|
3x4 |
|
Red Snappers |
Parrot Fish |
Before |
5 u |
20 u |
Change |
|
- 8 u |
After |
5 u |
12 u |
20% =
20100 =
15 40% =
40100 =
25The number of parrot fish at first is the same.
LCM of 4 and 5 = 20
Parrot Fish : Red Snappers = 12 : 5
Answer(s): 12 : 5