There were 68 apples and persimmons in a stall at first. After
14 of the apples and
12 of the persimmons were sold, there were a total of 48 apples and persimmons now. How many apples were there at first?
| |
Apples |
Persimmons |
Total |
| Before |
4 u |
2 p |
68 |
| Change |
- 1 u |
- 1 p |
- 20 |
| After |
3 u |
1 p |
48 |
Total number of apples and persimmons sold
= 68 - 48
= 20
3 u + 1 p = 48
1 p = 48 - 3 u --- (1)
1 u + 1 p = 20
1 p = 20 - 1 u --- (2)
(2) = (1)
20 - 1 u = 48 - 3 u
3 u - 1 u = 48 - 20
2 u = 28
1 u = 28 ÷ 2 = 14
Number of apples at first
= 4 u
= 4 x 14
= 56
Answer(s): 56
