Verbal Reasoning - Arithmetic Reasoning - Discussion

Discussion Forum : Arithmetic Reasoning - Section 2 (Q.No. 5)
5.
In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is
5
7
10
12
Answer: Option
Explanation:

Let the number of cows be x and the number of hens be y.

Then, 4x + 2y = 2 (x + y) + 14 4x + 2y = 2x + 2y + 14 2x = 14 x = 7.

Discussion:
12 comments Page 2 of 2.

BRS REDDY said:   7 years ago
How many hens are there?

Monica said:   9 years ago
How 4x + 2y came?
(1)


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