QUESTION:

The sum three consecutive numbers is 57. what is the smallest of these numbers?

• A. 17
• B. 18
• C. 19
• D. 20

• x + x + 1 + x + 2 = 57
• 3x + 3 = 57
• 3x = 57 - 3
• 3x = 54
• x = 54/3
• x = 18
• x + 1
• 18 + 1 = 19
• x + 2
• 18 + 2 = 20

• The three consecutive numbers are 18, 19 and 20.
• The smallest number is 18.
• B. 18

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