There are 2 more eagles than hippopotamuses in a zoo. If there is a total of 148 legs, how many eagles are there in the zoo?
| |
Hippopotamuses |
Eagles |
Total |
| Number |
1 u |
1 u + 2 |
|
| Value |
4 |
2 |
|
| Total value |
4 u |
2 u + 4 |
6 u + 4 |
Number of hippopotamuses = 1 u
Number of eagles = 1 u + 2
Number of hippopotamuses' legs
= 4 x 1 u
= 4 u
Number of eagles' legs
= 2(1 u + 2)
= 2 u + 4
Total number of legs
= 4 u + 2 u + 4
= 6 u + 4
6 u + 4 = 148
6 u = 148 - 4
6 u = 148 - 4
6 u = 144
1 u = 144 ÷ 6 = 24
Number of eagles
= 1 u + 2
= 24 + 2
= 26
Answer(s): 26
