There were 304 kiwis and mangoes in a fruit stall.
37 of the kiwis and
35 of mangoes were sold. Given that there were 148 kiwis and mangoes left, how many kiwis were there in the fruit stall at first?
|
Kiwis |
Mangoes |
Before |
7 u |
5 p |
Change |
- 3 u |
- 3 p |
After |
4 u |
2 p |
7 u + 5 p = 304 --- (1)
4 u + 2 p = 148 --- (2)
Make p the same.
(1)
x 2 14 u + 10 p = 608 --- (3)
(2)
x 5 20 u + 10 p = 740 --- (4)
(4) - (3)
20 u - 14 u = 740 - 608
6 u = 132
1 u = 132 ÷ 6 = 22
Number of kiwis at first
= 7 u
= 7 x 22
= 154
Answer(s): 154