There were 275 persimmons and kiwis in a fruit stall.
310 of the persimmons and
35 of kiwis were sold. Given that there were 170 persimmons and kiwis left, how many persimmons were there in the fruit stall at first?
| |
Persimmons |
Kiwis |
| Before |
10 u |
5 p |
| Change |
- 3 u |
- 3 p |
| After |
7 u |
2 p |
10 u + 5 p = 275 --- (1)
7 u + 2 p = 170 --- (2)
Make p the same.
(1)
x 2 20 u + 10 p = 550 --- (3)
(2)
x 5 35 u + 10 p = 850 --- (4)
(4) - (3)
35 u - 20 u = 850 - 550
15 u = 300
1 u = 300 ÷ 15 = 20
Number of persimmons at first
= 10 u
= 10 x 20
= 200
Answer(s): 200
