total = 60
2/3 of it is either cows or pigs
So 40 = cows + pigs
Stmt1: more than twice as many cows as it has pigs ==>C >2P
P=1, C = 39
.
.
.
p=13, c= 27 --- till here it satisfies the condtion C>2P
Still we cannot say the value of C (39......27)
Stmt2: says p>12.. we cannot conclude the value of C coz C can be from 27..to ...1
Combining 1,2 gives p=13 and C=27
C
Algebric way of solving this problem,
from Q, P+C = 40 ---1)
Stmt 1: C>2P --- 2)
sub 2) in 1) 3P<40 --- So P<13.3333
Not SUFF. since P can vary b/w 1 to 13
Stmt2: p>12 we cannot conclude the value of C coz C can be from 27..to ...1
Combining both
12<p<13.33
So absolute value is 13
hence C