Some geese and goats are in a farm. These animals have a total of 15 heads and 46 legs.
- How many goats are there?
- How many geese are there?
Number of
goats |
Number of
goats' legs |
Number of
geese |
Number of
geese' legs |
Total legs |
15
|
15 x 4
= 60 |
0
|
0
|
60 |
14
|
14 x 4
= 56 |
1
|
1 x 2
= 2 |
58
|
| 8 |
8 x 4
= 32 |
7
|
7 x 2
= 14 |
46
|
Number of legs if all are goats
= 15 x 4
= 60
Big difference between the number of legs of the goats and the geese
= 60 - 46
= 14
Small difference between the number of legs of one goat and one goose
= 4 - 2
= 2
Numbers of geese
= 14 ÷ 2
= 7
(b)
Number of goats
= 15 - 7
= 8
Answer(s): (a) 7; (b) 8
