In a box, there are some oranges and chikoos. If 30 chikoos are removed from the box, the percentage of chikoos will increase from 30% to 60%. How many chikoos are there in the box?
| |
Oranges |
Chikoos |
| Before |
3x1 =
3 u |
7x1 =
7 u |
| Change |
No change |
- 30 |
| After |
3x1 =
3 u |
2x1 =
2 u |
30% =
30100 =
310 60% =
60100 =
35 The number of oranges remains unchanged at first and in the end. Make the number of oranges the same. LCM of 3 and 3 is 3.
Number of chikoos removed
= 7 u - 2 u
= 5 u
5 u = 30
1 u = 30 ÷ 5 = 6
Number of chikoos
= 7 u
= 7 x 6
= 42
Answer(s): 42
