Question

There are 40 pigs and chickens in a farmyard. Joseph counted 100 legs in all. How many pigs and how many chickens are there?

Answer 1

Step-by-step explanation:

⭐Question:-

There are 40 pigs and chickens in a farmyard. Joseph counted 100 legs in all. How many pigs and how many chickens are there?

⭐Answer:-

Solution:

Let x = the number of pigs

Let y = the number of chickens

x + y = 40

Multiply this equation by -2 and add it to the next equation.

4x + 2y = 100

=》-2x - 2y = -80

=》2x = 20

x = 10 pigs

y = 30 chickens

Thus, total numbers of pigs are 10 and total number of chickens are 30.