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