If they were all horses you'd have 440 legs, so you're 184 legs "short", so you have half that number of chickens ie 92, leaving 18 horses. That's 92 x 2 and 18 x 4 legs, 184 + 72 = 256
On a farm there are chickens and three-legged-cows. There are total of 49 heads and 130 legs. How many chickens are on the farm?
there are 36 horses and 23 chickens.........
85 chickens
There are 61 horses and 10 chickens on the farm.
If all were horses there would be 428 legs. The shortfall of 36 legs represents 18 chickens so there are 89 horses.
There are 42 chickens in the farm.
27
If all were horses there would be 4 x 61 ie 244 legs. There is a shortfall of 50 legs ie 25 less four-legged creatures, so there are 36 horses and 25 chickens, giving 144 + 50 legs
7 cows and 11 chickens. Cows have 4 legs. Chickens have 2 legs. (4 legs)(7 cows) + (2 legs)(11 chickens) = 50 legs. 7 cow heads = 11 chicken heads = 18 heads.
There are 18 horses and 14 chickens. How? Horses= 4 legs 18*4=72 Chickens= 2 legs 14*2=28 72+28=100
Suppose there are x chickens and y cows Then heads => x + y = 64 And Legs => 2x + 3y = 147 2*Heads: 2x +2y = 128 Subtract from Legs: 19 = y Substitute in Heads: x = 45 Answer: 45 chickens.
50 horses and 10 chickens