In a box, there are some mangoes and pomegranates. If 45 more pomegranates are put into the box, the percentage of mangoes will decrease from 70% to 40%. How many mangoes are there in the box?
|
Mangoes |
Pomegranates |
Before |
7x2 = 14 u |
3x2 = 6 u |
Change |
No change |
+ 45 |
After |
2x7 = 14 u |
3x7 = 21 u |
70% =
70100 =
710 40% =
40100 =
25 The number of mangoes remains unchanged at first and in the end. Make the number of mangoes the same. LCM of 7 and 2 is 14.
Number of pomegranates added
= 21 u - 6 u
= 15 u
15 u = 45
1 u = 45 ÷ 15 = 3
Number of mangoes
= 14 u
= 14 x 3
= 42
Answer(s): 42