The ratio of pomegranates to mangoes is 5 : 7. If 18 mangoes are added, the ratio of pomegranates to mangoes will be 5 : 9. How many less pomegranates than mangoes are there in the end?
| |
Pomegranates |
Mangoes |
| Before |
5 u |
7 u |
| Change |
|
+ 18 |
| After |
5 u |
9 u |
The number of pomegranates at first and in the end remains unchanged.
Number of mangoes added
= 9 u - 7 u
= 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Number of less pomegranates than mangoes in the end
= 9 u - 5 u
= 4 u
= 4 x 9
= 36
Answer(s): 36
