Question
General Aptitude Question on Number Systems
In the Delhi zoo, there are some ducks and rabbits. If the heads are counted there are 160, while the legs are 450. What will be the number of ducks in the zoo?
A
90
B
92
C
95
D
99
Answer
92
Explanation
Solution
Let the number of ducks be x and rabbits be y. We set up equations: x + y = 160 (for heads) and 2x + 4y = 450 (for legs). Solving these, we find x = 92.