There were 119 apples and mangosteens in a stall at first. After
17 of the apples and
12 of the mangosteens were sold, there were a total of 97 apples and mangosteens now. How many apples were there at first?
| |
Apples |
Mangosteens |
Total |
| Before |
7 u |
2 p |
119 |
| Change |
- 1 u |
- 1 p |
- 22 |
| After |
6 u |
1 p |
97 |
Total number of apples and mangosteens sold
= 119 - 97
= 22
6 u + 1 p = 97
1 p = 97 - 6 u --- (1)
1 u + 1 p = 22
1 p = 22 - 1 u --- (2)
(2) = (1)
22 - 1 u = 97 - 6 u
6 u - 1 u = 97 - 22
5 u = 75
1 u = 75 ÷ 5 = 15
Number of apples at first
= 7 u
= 7 x 15
= 105
Answer(s): 105
