The ratio of starfruits to guavas is 5 : 7. If 48 guavas are added, the ratio of starfruits to guavas will be 5 : 11. How many less starfruits than guavas are there in the end?
| |
Starfruits |
Guavas |
| Before |
5 u |
7 u |
| Change |
|
+ 48 |
| After |
5 u |
11 u |
The number of starfruits at first and in the end remains unchanged.
Number of guavas added
= 11 u - 7 u
= 4 u
4 u = 48
1 u = 48 ÷ 4 = 12
Number of less starfruits than guavas in the end
= 11 u - 5 u
= 6 u
= 6 x 12
= 72
Answer(s): 72
