At a supermarket, 25% of the fish were parrot fish and the rest were red snappers. 10% of the red snappers were sold. What was the ratio of the number of parrot fish to the number of red snappers in the end?
|
Parrot Fish |
Red Snappers |
Compare between parrot fish and red snappers at first |
1x10 |
3x10 |
Before |
|
10x3 |
Change |
|
- 1x3 |
After |
|
9x3 |
|
Parrot Fish |
Red Snappers |
Before |
10 u |
30 u |
Change |
|
- 3 u |
After |
10 u |
27 u |
25% =
25100 =
14 10% =
10100 =
110The number of red snappers at first is the same.
LCM of 3 and 10 = 30
Parrot Fish : Red Snappers = 10 : 27
Answer(s): 10 : 27