In a group of hens and cows, the total number of legs are 24 more than twice the number of heads. How many cows are there in the group?	Choose the correct choice
A) 8	B) 10	C) 12	D) 14	E) 16
Explanation :   Let the number of cows be x and the number of hens be y.   Then,   =&gt; 4x + 2y = 2(x + y) + 24   =&gt; 2x = 24   =&gt; x = 12.   Answer : 12
<result>C</result>
In a group of hens and cows, the total number of legs are 24 more than twice the number of heads. How many cows are there in the group?