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There are 120 chickens and rabbits, 150 more feet than rabbits. How many chickens and rabbits are there? Fang Chengjie
It is known that there are 120 chickens and rabbits. Suppose that there are x chickens, then there are (120-x) rabbits, a chicken has 2 feet, a rabbit has 4 feet, then x chickens have 2x feet, and (120-x) rabbits have 4 (120-x) feet. It is also known that chickens have 150 feet more than rabbits, so 2X-4 (120-x) = 150, simplify 2x + 4x-480 = 1506x = 150 + 480 = 630x = 630
There are 120 chickens and 120 rabbits in total. Chickens have 120 feet more than rabbits
The equation of first degree with one variable!
There were x chickens and 120-x rabbits
2X-4(120-X)=120
2X-480+4X=120
6X=600
X=100
There are 100 chickens and 20 rabbits
There are 120 chickens and rabbits in total. If the number of chickens and rabbits are exchanged, there are 180. How many chickens and rabbits are there? How many are there
Suppose a chicken has x rabbits and Y rabbits
2x+4y=120
4x+2y=180
We got 40 chickens and 10 rabbits
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