In a box, there are some mangoes and oranges. If 42 oranges are removed from the box, the percentage of oranges will increase from 40% to 75%. How many oranges are there in the box?
|
Mangoes |
Oranges |
Before |
2x3 = 6 u |
3x3 = 9 u |
Change |
No change |
- 42 |
After |
3x2 = 6 u |
1x2 = 2 u |
40% =
40100 =
25 75% =
75100 =
34 The number of mangoes remains unchanged at first and in the end. Make the number of mangoes the same. LCM of 3 and 2 is 6.
Number of oranges removed
= 9 u - 2 u
= 7 u
7 u = 42
1 u = 42 ÷ 7 = 6
Number of oranges
= 9 u
= 9 x 6
= 54
Answer(s): 54