There are 3 more peacocks than rhinoceros in a zoo. If there is a total of 132 legs, how many peacocks are there in the zoo?
| |
Rhinoceros |
Peacocks |
Total |
| Number |
1 u |
1 u + 3 |
|
| Value |
4 |
2 |
|
| Total value |
4 u |
2 u + 6 |
6 u + 6 |
Number of rhinoceros = 1 u
Number of peacocks = 1 u + 3
Number of rhinoceros' legs
= 4 x 1 u
= 4 u
Number of peacocks' legs
= 2(1 u + 3)
= 2 u + 6
Total number of legs
= 4 u + 2 u + 6
= 6 u + 6
6 u + 6 = 132
6 u = 132 - 6
6 u = 132 - 6
6 u = 126
1 u = 126 ÷ 6 = 21
Number of peacocks
= 1 u + 3
= 21 + 3
= 24
Answer(s): 24
