In a den, there are rabbits and game birds. They have 35 heads and 98 feet. The number of rabbits in the den is
A
28
B
19
C
21
D
14
Correct Option:
D
Explanation
Let rabbits = r and birds = b. From the number of heads, r + b = 35. From the number of feet, 4r + 2b = 98, or 2r + b = 49. Subtracting the first equation gives r = 14.
