There are 8 more parrots than polar bears in a zoo. If there is a total of 100 legs, how many parrots are there in the zoo?
| |
Polar Bears |
Parrots |
Total |
| Number |
1 u |
1 u + 8 |
|
| Value |
4 |
2 |
|
| Total value |
4 u |
2 u + 16 |
6 u + 16 |
Number of polar bears = 1 u
Number of parrots = 1 u + 8
Number of polar bears' legs
= 4 x 1 u
= 4 u
Number of parrots' legs
= 2(1 u + 8)
= 2 u + 16
Total number of legs
= 4 u + 2 u + 16
= 6 u + 16
6 u + 16 = 100
6 u = 100 - 16
6 u = 100 - 16
6 u = 84
1 u = 84 ÷ 6 = 14
Number of parrots
= 1 u + 8
= 14 + 8
= 22
Answer(s): 22
