There were 310 kiwis and lemons in a fruit stall.
49 of the kiwis and
35 of lemons were sold. Given that there were 159 kiwis and lemons left, how many kiwis were there in the fruit stall at first?
|
Kiwis |
Lemons |
Before |
9 u |
5 p |
Change |
- 4 u |
- 3 p |
After |
5 u |
2 p |
9 u + 5 p = 310 --- (1)
5 u + 2 p = 159 --- (2)
Make p the same.
(1)
x 2 18 u + 10 p = 620 --- (3)
(2)
x 5 25 u + 10 p = 795 --- (4)
(4) - (3)
25 u - 18 u = 795 - 620
7 u = 175
1 u = 175 ÷ 7 = 25
Number of kiwis at first
= 9 u
= 9 x 25
= 225
Answer(s): 225