In a box, there are some persimmons and oranges. If 16 oranges are removed from the box, the percentage of oranges will increase from 25% to 75%. How many oranges are there in the box?
|
Persimmons |
Oranges |
Before |
1x3 = 3 u |
3x3 = 9 u |
Change |
No change |
- 16 |
After |
3x1 = 3 u |
1x1 = 1 u |
25% =
25100 =
14 75% =
75100 =
34 The number of persimmons remains unchanged at first and in the end. Make the number of persimmons the same. LCM of 3 and 1 is 3.
Number of oranges removed
= 9 u - 1 u
= 8 u
8 u = 16
1 u = 16 ÷ 8 = 2
Number of oranges
= 9 u
= 9 x 2
= 18
Answer(s): 18