There are some shepherds and their sheep in a grazing field. The no. of total heads are 60 and total legs are 168 including both men and sheep. The no. of sheep are:
20
26
24
36
18
Let no. of men = x
No of sheep = y
X+Y = 60............... (1)
2X+4Y=168
Or
X+2Y = 84 ............(2)
(2) – (1)
Y= 24