GRE Exam Numerical Ability Algebra

If x + 2y = a and x − 2y = b, which of the following mention expressions is equal to x+y?
A] (3a-b)/2 B] (3a+b)/4 C] (a²−b²)/4 D] (a²−b²)/8

Read Solution (Total 1)

Option B is correct

On solving the above equations, we get x = (a+b)/2 & y = (a-b)/4
Therefore x + y = (3a+b)/4
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GRE Other Question

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