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Q.
In a group of buffaloes and ducks, the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?
A.
6
B.
10
C.
8
D.
12
View Answer
Correct choice: D
Explanation:
Let the number of buffaoes be x and number of ducks be y. Then 4x + 2y = 2(x + y) + 24 => 2x = 24 => x = 12.
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