The ratio of mangoes to grapefruits is 3 : 5. If 35 grapefruits are added, the ratio of mangoes to grapefruits will be 3 : 10. How many more grapefruits than mangoes are there in the end?
| |
Mangoes |
Grapefruits |
| Before |
3 u |
5 u |
| Change |
|
+ 35 |
| After |
3 u |
10 u |
The number of mangoes at first and in the end remains unchanged.
Number of grapefruits added
= 10 u - 5 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Number of more grapefruits than mangoes in the end
= 10 u - 3 u
= 7 u
= 7 x 7
= 49
Answer(s): 49
