Yesterday, there were four times as many sheep as pigs on a farm. Today, 35 sheep are sold. There are twice as many pigs now. Find the total number of pigs and sheep on the farm yesterday.
|
Sheep |
Pigs |
Total |
Before |
4x2 = 8 u |
1x2 = 2 u |
10 u |
Change |
- 35 |
|
|
After |
1 u |
2 u |
|
The number of pigs at first and in the end remains unchanged. Make the number of pigs the same. LCM of 1 and 2 is 2.
Number of sheep sold
= 8 u - 1 u
= 7 u
7 u = 35
1 u = 35 ÷ 7 = 5
Total number of pigs and sheep yesterday
= 8 u + 2 u
= 10 u
= 10 x 5
= 50
Answer(s): 50