There were 77 apples and passion fruits in a stall at first. After
15 of the apples and
12 of the passion fruits were sold, there were a total of 55 apples and passion fruits now. How many apples were there at first?
| |
Apples |
Passion Fruits |
Total |
| Before |
5 u |
2 p |
77 |
| Change |
- 1 u |
- 1 p |
- 22 |
| After |
4 u |
1 p |
55 |
Total number of apples and passion fruits sold
= 77 - 55
= 22
4 u + 1 p = 55
1 p = 55 - 4 u --- (1)
1 u + 1 p = 22
1 p = 22 - 1 u --- (2)
(2) = (1)
22 - 1 u = 55 - 4 u
4 u - 1 u = 55 - 22
3 u = 33
1 u = 33 ÷ 3 = 11
Number of apples at first
= 5 u
= 5 x 11
= 55
Answer(s): 55
