At a farm, there were
47 as many ducks and chickens. The farmer added another 22 ducks but sold away 36 chickens. In the end, there were 2 chickens more than ducks. How many ducks and chickens were there altogether in the end?
| |
Ducks |
Chickens |
| Before |
4 u |
7 u |
| Change |
+ 22 |
- 36 |
| After |
4 u + 22 |
7 u - 36 |
If the farmer had another 2 ducks in the end, the number of ducks and (chickens) would be the same.
7 u - 36 = 4 u + 22 + 2
7 u - 4 u = 24 + 36
3 u = 60
1 u = 60 ÷ 3 = 20
Number of chickens and ducks in the end
= 4 u + 22 + 7 u - 36
= 4 u + 7 u + 22 - 36
= 11 u - 14
= 11 x 20 - 14
= 206
Answer(s): 206
