In a box, there are some starfruits and chikoos. If 50 chikoos are removed from the box, the percentage of chikoos will increase from 30% to 80%. How many chikoos are there in the box?
|
Starfruits |
Chikoos |
Before |
3x4 = 12 u |
7x4 = 28 u |
Change |
No change |
- 50 |
After |
4x3 = 12 u |
1x3 = 3 u |
30% =
30100 =
310 80% =
80100 =
45 The number of starfruits remains unchanged at first and in the end. Make the number of starfruits the same. LCM of 4 and 3 is 12.
Number of chikoos removed
= 28 u - 3 u
= 25 u
25 u = 50
1 u = 50 ÷ 25 = 2
Number of chikoos
= 28 u
= 28 x 2
= 56
Answer(s): 56