In a container, there are some kiwis and persimmons. If 30 more persimmons are put into the container, the percentage of kiwis will decrease from 80% to 40%. How many kiwis are there in the container?
|
Kiwis |
Persimmons |
Before |
4x1 = 4 u |
1x1 = 1 u |
Change |
No change |
+ 30 |
After |
2x2 = 4 u |
3x2 = 6 u |
80% =
80100 =
45 40% =
40100 =
25 The number of kiwis remains unchanged at first and in the end. Make the number of kiwis the same. LCM of 4 and 2 is 4.
Number of persimmons added
= 6 u - 1 u
= 5 u
5 u = 30
1 u = 30 ÷ 5 = 6
Number of kiwis
= 4 u
= 4 x 6
= 24
Answer(s): 24