Yesterday, there were four times as many geese as pigs on a farm. Today, 63 geese are sold. There are twice as many pigs now. Find the total number of pigs and geese on the farm yesterday.
| |
Geese |
Pigs |
Total |
| Before |
4x2 =
8 u |
1x2 =
2 u |
10 u |
| Change |
- 63 |
|
|
| 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 geese sold
= 8 u - 1 u
= 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Total number of pigs and geese yesterday
= 8 u + 2 u
= 10 u
= 10 x 9
= 90
Answer(s): 90
