Yesterday, there were four times as many turkeys as ducks on a farm. Today, 55 turkeys are sold. There are thrice as many ducks now. Find the total number of ducks and turkeys on the farm yesterday.
| |
Turkeys |
Ducks |
Total |
| Before |
4x3 =
12 u |
1x3 =
3 u |
15 u |
| Change |
- 55 |
|
|
| After |
1 u |
3 u |
|
The number of ducks at first and in the end remains unchanged. Make the number of ducks the same. LCM of 1 and 3 is 3.
Number of turkeys sold
= 12 u - 1 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Total number of ducks and turkeys yesterday
= 12 u + 3 u
= 15 u
= 15 x 5
= 75
Answer(s): 75
