Question:
x > y
Quantity A
The average (arithmetic mean) of x, x, x, y, and y
Quantity B
The average (arithmetic mean) of x, x, and y
Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.
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Rather than solving this question algebraically (which is what the solution does) i just used sample figures. I used x=10 and y=5 and got the correct answer. So, is my method of solving the question correct or is it just a fluke that I got the correct answer?