At a fruit stall, there were
15 as many persimmons as kiwis. After 21 kiwis were sold, the number of persimmons became
23 as many as the kiwis. How many fruits were at the fruit stall at first?
| |
Persimmons |
Kiwis |
| Before |
1x2 =
2 u |
5x2 =
10 u |
| Change |
|
- 21 |
| After |
2x1 =
2 u |
3x1 =
3 u |
The number of persimmons at first and in the end remains unchanged. Make the number of persimmons the same. LCM of 1 and 2 is 2.
Number of kiwis sold
= 10 u - 3 u
= 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Number of fruits at first
= 2 u + 10 u
= 12 u
= 12 x 3
= 36
Answer(s): 36
