The ratio of dragonfruits to grapefruits is 5 : 7. If 12 grapefruits are added, the ratio of dragonfruits to grapefruits will be 5 : 11. How many more grapefruits than dragonfruits are there in the end?
| |
Dragonfruits |
Grapefruits |
| Before |
5 u |
7 u |
| Change |
|
+ 12 |
| After |
5 u |
11 u |
The number of dragonfruits at first and in the end remains unchanged.
Number of grapefruits added
= 11 u - 7 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Number of more grapefruits than dragonfruits in the end
= 11 u - 5 u
= 6 u
= 6 x 3
= 18
Answer(s): 18
