In a box, there are some lemons and mangoes. If 15 mangoes are removed from the box, the percentage of mangoes will increase from 40% to 80%. How many mangoes are there in the box?
|
Lemons |
Mangoes |
Before |
2x2 = 4 u |
3x2 = 6 u |
Change |
No change |
- 15 |
After |
4x1 = 4 u |
1x1 = 1 u |
40% =
40100 =
25 80% =
80100 =
45 The number of lemons remains unchanged at first and in the end. Make the number of lemons the same. LCM of 4 and 2 is 4.
Number of mangoes removed
= 6 u - 1 u
= 5 u
5 u = 15
1 u = 15 ÷ 5 = 3
Number of mangoes
= 6 u
= 6 x 3
= 18
Answer(s): 18