+0  
 
0
472
1
avatar

A farmer buys 100 animals for $100. The animals include at least one cow, one p*g, and one chicken. If a cow costs $10, a p*g costs $3, and a chicken costs $0.50, how many of each did he buy?

 Sep 20, 2016
edited by Guest  Sep 20, 2016
edited by Guest  Sep 20, 2016
edited by Guest  Sep 21, 2016
 #1
avatar+129840 
0

Let

x = no. of cows

y = no. of pigs

Z = no. of chickens

 

And we have the two equations

 

x + y + z = 100   

10x + 3y + .50z = 100

 

Since we have more variables than equations, we have multiple possibilities......here's one:

 

x = 5  = no. of cows

y = 1  = no. of pigs

z = 94  = no. of chickens

 

 

 

cool cool cool 

 Sep 20, 2016

4 Online Users

avatar
avatar
avatar