There were 301 apples and persimmons in a fruit stall.
49 of the apples and
35 of persimmons were sold. Given that there were 161 apples and persimmons left, how many apples were there in the fruit stall at first?
|
Apples |
Persimmons |
Before |
9 u |
5 p |
Change |
- 4 u |
- 3 p |
After |
5 u |
2 p |
9 u + 5 p = 301 --- (1)
5 u + 2 p = 161 --- (2)
Make p the same.
(1)
x 2 18 u + 10 p = 602 --- (3)
(2)
x 5 25 u + 10 p = 805 --- (4)
(4) - (3)
25 u - 18 u = 805 - 602
7 u = 203
1 u = 203 ÷ 7 = 29
Number of apples at first
= 9 u
= 9 x 29
= 261
Answer(s): 261