The ratio of persimmons to dragonfruits is 5 : 7. If 16 dragonfruits are added, the ratio of persimmons to dragonfruits will be 5 : 9. How many less persimmons than dragonfruits are there in the end?
| |
Persimmons |
Dragonfruits |
| Before |
5 u |
7 u |
| Change |
|
+ 16 |
| After |
5 u |
9 u |
The number of persimmons at first and in the end remains unchanged.
Number of dragonfruits added
= 9 u - 7 u
= 2 u
2 u = 16
1 u = 16 ÷ 2 = 8
Number of less persimmons than dragonfruits in the end
= 9 u - 5 u
= 4 u
= 4 x 8
= 32
Answer(s): 32
