Question

A farmer has chicken and cows the number of head are 77.and the number of lega 224 find the number of cows

Answer 1

Step-by-step explanation:

Let farmer has x cows and y chickens.

Therefore, according to the given information:

x + y = 77

y = 77 - x ........ (1)

Since a cow has 4 legs and a chicken has 2 legs.

Therefore, x cows have 4x legs and y chickens have 2y legs

So,

4x + 2y = 224...... (2)

From (1) & (2), we find:

4x + 2(77-x) = 224

4x +154- 2x =224

2x = 224 - 154

2x = 70

x = 70/2

x = 35

Thus the farmer has 35 cows.