In a box, there are some kiwis and chikoos. If 20 chikoos are removed from the box, the percentage of chikoos will increase from 30% to 60%. How many chikoos are there in the box?
|
Kiwis |
Chikoos |
Before |
3x1 = 3 u |
7x1 = 7 u |
Change |
No change |
- 20 |
After |
3x1 = 3 u |
2x1 = 2 u |
30% =
30100 =
310 60% =
60100 =
35 The number of kiwis remains unchanged at first and in the end. Make the number of kiwis the same. LCM of 3 and 3 is 3.
Number of chikoos removed
= 7 u - 2 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Number of chikoos
= 7 u
= 7 x 4
= 28
Answer(s): 28