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Simplification Test 9
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© examsnet.com
Question : 20
Total: 38
In a group of buffaloes and ducks the number of feet are 24 more than twice the number of heads. Find the number of buffaloes in the group.
12
10
8
6
Validate
Solution:
Let the number of buffaloes and duck be x and y respectively.
Now, 4x + 2y – 2 (x + y) = 24
⇒ 2x = 24
⇒ x = 12
© examsnet.com
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