In a container, there are some chikoos and starfruits. If 30 more starfruits are put into the container, the percentage of chikoos will decrease from 80% to 20%. How many chikoos are there in the container?
| |
Chikoos |
Starfruits |
| Before |
4x1 =
4 u |
1x1 =
1 u |
| Change |
No change |
+ 30 |
| After |
1x4 =
4 u |
4x4 =
16 u |
80% =
80100 =
45 20% =
20100 =
15 The number of chikoos remains unchanged at first and in the end. Make the number of chikoos the same. LCM of 4 and 1 is 4.
Number of starfruits added
= 16 u - 1 u
= 15 u
15 u = 30
1 u = 30 ÷ 15 = 2
Number of chikoos
= 4 u
= 4 x 2
= 8
Answer(s): 8
