The ratio of peaches to starfruits is 3 : 7. If 33 starfruits are added, the ratio of peaches to starfruits will be 3 : 10. How many more starfruits than peaches are there in the end?
| |
Peaches |
Starfruits |
| Before |
3 u |
7 u |
| Change |
|
+ 33 |
| After |
3 u |
10 u |
The number of peaches at first and in the end remains unchanged.
Number of starfruits added
= 10 u - 7 u
= 3 u
3 u = 33
1 u = 33 ÷ 3 = 11
Number of more starfruits than peaches in the end
= 10 u - 3 u
= 7 u
= 7 x 11
= 77
Answer(s): 77
