There were 347 persimmons and passion fruits in a fruit stall.
27 of the persimmons and
35 of passion fruits were sold. Given that there were 163 persimmons and passion fruits left, how many persimmons were there in the fruit stall at first?
|
Persimmons |
Passion Fruits |
Before |
7 u |
5 p |
Change |
- 2 u |
- 3 p |
After |
5 u |
2 p |
7 u + 5 p = 347 --- (1)
5 u + 2 p = 163 --- (2)
Make p the same.
(1)
x 2 14 u + 10 p = 694 --- (3)
(2)
x 5 25 u + 10 p = 815 --- (4)
(4) - (3)
25 u - 14 u = 815 - 694
11 u = 121
1 u = 121 ÷ 11 = 11
Number of persimmons at first
= 7 u
= 7 x 11
= 77
Answer(s): 77