Set 4: Linear Equations (Advanced)

Explanation

Answer: A

The sum of three consecutive integers is 60. What is the largest integer?

✓ Correct

Detailed Explanation

Choice A is correct. Choice C is the correct answer. 1. Define: $x, x+1, x+2$ . 2. Equation: $3x + 3 = 60$ 3. Subtract 3: $3x = 57$ 4. Divide by 3: $x = 19$ 5. Largest: $x + 2 = 21$ 6. Verify: $19+ 20 + 21 = 60$ ✓ Choice D is incorrect because this is the smallest. Choice C is incorrect because this is the middle. Choice D is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 21

Why others are wrong:

B: Choice B is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

D: Choice D is incorrect and may result from a calculation error.

← Previous Next →

🎯 Keep Practicing!

Master all sections for your best SAT score

📚Reading & Writing→📖Vocabulary→