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The sum of three consecutive numbers is 477. What is the 3rd number?

User Nikartix
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1 Answer

4 votes

Answer:

160

Explanation:

Consecutive numbers have a difference of 1 between them.

Let n be the first number then n + 1 and n + 2 are the second and third numbers. Summing them gives

n + n + 1 + n + 2 = 477, that is

3n + 3 = 477 ( subtract 3 from both sides )

3n = 474 ( divide both sides by 3 )

n = 158

The 3 consecutive numbers are 158, 159, 160

The third number is 160

User Alexroussos
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