In a box, there are some passion fruits and mangoes. If 240 mangoes are removed from the box, the percentage of mangoes will increase from 30% to 70%. How many mangoes are there in the box?
|
Passion fruits |
Mangoes |
Before |
3x7 = 21 u |
7x7 = 49 u |
Change |
No change |
- 240 |
After |
7x3 = 21 u |
3x3 = 9 u |
30% =
30100 =
310 70% =
70100 =
710 The number of passion fruits remains unchanged at first and in the end. Make the number of passion fruits the same. LCM of 7 and 3 is 21.
Number of mangoes removed
= 49 u - 9 u
= 40 u
40 u = 240
1 u = 240 ÷ 40 = 6
Number of mangoes
= 49 u
= 49 x 6
= 294
Answer(s): 294