book Maths Puzzle Numerical Ability

The sum of three consecutive even integers is 126. WHAT IS THE LARGEST OF THE THREE?

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book Other Question

Problem: 2c divided by 3b, where b = 4 and c = 6. I say the answer is 1, the text I was using shows the answer as 16? I believe it to be a misprint. What is the correct answer? Discuss the difference between solving a system of two equations with two unknowns by graphing and by using the algebraic methods (substitution or addition).