There were 138 lemons and kiwis in a stall at first. After
17 of the lemons and
12 of the kiwis were sold, there were a total of 104 lemons and kiwis now. How many lemons were there at first?
| |
Lemons |
Kiwis |
Total |
| Before |
7 u |
2 p |
138 |
| Change |
- 1 u |
- 1 p |
- 34 |
| After |
6 u |
1 p |
104 |
Total number of lemons and kiwis sold
= 138 - 104
= 34
6 u + 1 p = 104
1 p = 104 - 6 u --- (1)
1 u + 1 p = 34
1 p = 34 - 1 u --- (2)
(2) = (1)
34 - 1 u = 104 - 6 u
6 u - 1 u = 104 - 34
5 u = 70
1 u = 70 ÷ 5 = 14
Number of lemons at first
= 7 u
= 7 x 14
= 98
Answer(s): 98
