There were 86 persimmons and chikoos in a stall at first. After
16 of the persimmons and
12 of the chikoos were sold, there were a total of 69 persimmons and chikoos now. How many persimmons were there at first?
| |
Persimmons |
Chikoos |
Total |
| Before |
6 u |
2 p |
86 |
| Change |
- 1 u |
- 1 p |
- 17 |
| After |
5 u |
1 p |
69 |
Total number of persimmons and chikoos sold
= 86 - 69
= 17
5 u + 1 p = 69
1 p = 69 - 5 u --- (1)
1 u + 1 p = 17
1 p = 17 - 1 u --- (2)
(2) = (1)
17 - 1 u = 69 - 5 u
5 u - 1 u = 69 - 17
4 u = 52
1 u = 52 ÷ 4 = 13
Number of persimmons at first
= 6 u
= 6 x 13
= 78
Answer(s): 78
