The ratio of dragonfruits to mangosteens is 3 : 8. If 12 mangosteens are added, the ratio of dragonfruits to mangosteens will be 3 : 10. How many less dragonfruits than mangosteens are there in the end?
| |
Dragonfruits |
Mangosteens |
| Before |
3 u |
8 u |
| Change |
|
+ 12 |
| After |
3 u |
10 u |
The number of dragonfruits at first and in the end remains unchanged.
Number of mangosteens added
= 10 u - 8 u
= 2 u
2 u = 12
1 u = 12 ÷ 2 = 6
Number of less dragonfruits than mangosteens in the end
= 10 u - 3 u
= 7 u
= 7 x 6
= 42
Answer(s): 42
