At a fruit stall, there were
13 as many persimmons as starfruits. After 15 starfruits were sold, the number of persimmons became
34 as many as the starfruits. How many fruits were at the fruit stall at first?
|
Persimmons |
Starfruits |
Before |
1x3 = 3 u |
3x3 = 9 u |
Change |
|
- 15 |
After |
3x1 = 3 u |
4x1 = 4 u |
The number of persimmons at first and in the end remains unchanged. Make the number of persimmons the same. LCM of 1 and 3 is 3.
Number of starfruits sold
= 9 u - 4 u
= 5 u
5 u = 15
1 u = 15 ÷ 5 = 3
Number of fruits at first
= 3 u + 9 u
= 12 u
= 12 x 3
= 36
Answer(s): 36