Puzzler


Life on the Farm

Problem

A farm contains turkeys and horses. There are 116 heads and 282 legs.

How many turkeys are there?

Solution

Use algebra to solve this problem. Start by assigning variables to the unknown quantities. Use "h" to represent the number of horses and "t" to represent the number of turkeys. We know that there are a total of 116 heads, which means that the number of horses plus the number of turkeys equals 116:

h + t = 116

We also know that there are a total of 282 legs, and since horses have 4 legs and turkeys have 2 legs, we can write an equation for the total number of legs:

4h + 2t = 282

Now we have two equations with two variables. We can solve for one variable in terms of the other in the first equation:

h = 116 - t

Substituting this expression for h into the second equation, we get:

4(116 - t) + 2t = 282

Expanding the multiplication and simplifying, we get:

464 - 2t + 2t = 282

Simplifying further, we get:

2t = 182 Dividing both sides by 2, we get:

t = 91 Therefore, there are 91 turkeys on the farm.

How did you do?