There were 246 chikoos and persimmons in a fruit stall.
49 of the chikoos and
35 of persimmons were sold. Given that there were 139 chikoos and persimmons left, how many chikoos were there in the fruit stall at first?
|
Chikoos |
Persimmons |
Before |
9 u |
5 p |
Change |
- 4 u |
- 3 p |
After |
5 u |
2 p |
9 u + 5 p = 246 --- (1)
5 u + 2 p = 139 --- (2)
Make p the same.
(1)
x 2 18 u + 10 p = 492 --- (3)
(2)
x 5 25 u + 10 p = 695 --- (4)
(4) - (3)
25 u - 18 u = 695 - 492
7 u = 203
1 u = 203 ÷ 7 = 29
Number of chikoos at first
= 9 u
= 9 x 29
= 261
Answer(s): 261