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In a yard there are ducks and cows If there are 35 heads and 110 legs. How many ducks are there?
Well, well, well, looks like we've got a little math puzzle on our hands. If we let D be the number of ducks and C be the number of cows, we have the lovely equations D + C = 35 and 2D + 4C = 110. Solving this system of equations, we find that there are 15 ducks waddling around causing a ruckus in the yard.
What else can I help you with?
2 ducks 2 dogs and 2 cats have how many legs?
No. of legs per animal: Duck - 2 Dog & Cat - 4 2 Ducks + 2 Dogs + 2 Cats = (2 * 2) + (2 * 4) + (2 * 4) = 4 + 8 + 8 = 20 legs
A collection of cats and dogs and birds has a total of 76 heads and 260 legs between them There are twice as many cats as there are dogs how many of each is there?
18 cats,22 birds and 36 dogs....
I count 24 heads and 80 legs. How many pigs and how many chickens are out there?
Heads: P + C = 24C = 24 - PLegs: 4P + 2C = 80Substitute, from heads: 4P + 2 (24 - P) = 804P + 48 - 2P = 802P = 32P = 16C = 24-P = 8====================Check:P + C = 16 + 8 = 244P + 2C = 4(16) + 2(8) = 64 + 16 = 80 yay!
A farmer counts 70 heads and 200 legs how many chickens and pigs does he have?
Let c represent the number of chickens and p represent the number of pigs.Since chickens and pigs have one head each, 70 heads = c + p.Since chickens have 2 legs and pigs have 4 legs, 200 legs = 2c + 4p.Subtracting twice the first equation (140 = 2c + 2p) from the second, we get60 = 2porp = 30 pigsRewriting the first equation as c = 70 - p, we get c = 40 chickens.
How many arms and heads did the three hecatonchires have altogether?
200 arms and 200 heads
The dairy farm has both cows and chikensThe farm workers counted 50 legs and 18 heads how many cows are in the farm and how many chickens?
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.
Ducks have how many legs?
Ducks have 2 legs.
Farmer Macleod had some emus and some cows so if a visitor counted 14 heads and 40 legs altogether how many emus are there?
8 emus have 16 legs and 6 cows have 24 legs.
On a farm there are chickens and three-legged-cows. There are total of 64 heads and 147 legs. How many chickens are on the farm?
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.
How many legs does a duck have?
ducks have 2 legs ducks have 2 legs
On a farm there are horses and chickens There are total of 131 heads and 448 legs How many horses are on the farm?
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?
A group of goats and ducks have a total of 99 heads legs among them there are twice as many ducks as there are goat show many are there of each?
Let G be the number of goats and D be the number of ducks. We can set up a system of equations based on the number of heads and legs: G + D = 99 (from heads) and 4G + 2D = 296 (from legs). Solving this system of equations, we find that there are 33 goats and 66 ducks.
On a farm there are three-legged-cows and chickens there are a total of 119 heads and 332 legs how many three-legged-cows are on the farm?
94 three legged cows and 25 chickens.
On a farm there are horses and three legged cows there are a total of 60 heads and 213 legs how many horses are on the farm?
51 horses of which there are 3 cows with 2 heads and three legs or since there are no 3 legged cows there are 60 horses
On a farm there are three-legged-cows and horses There are total of 59 heads and 211 legs How many three-legged-cows are on the farm?
If all animals were horses there would be 4 x 59 ie 236 legs. There is a shortage of 25 legs so there are 25 cows (and 34 horses).
On a farm there are three legged cows and chickens there are a total of 48 heads and 122 legs how many three legged cows are there?
Do-it-in-your-head method: If all animals were chickens there would be 96 legs. There are 26 extra legs, each on a cow, so there are 26 cows and therefore 22 chickens.
If three cows have four legs and one cow has 2 legs how many cows have 2 legs?
8 cows (They all have 2 legs)
