What could be the total of 15 consecutive whole numbers?

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Correct answer marked below

115

225

Correct

355

475

875

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Explanation

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Official Explanation

Official

Let the first integer be Y. The sum of 15 consecutive integers can be expressed as Y + (Y + 1) + (Y + 2) + ... + (Y + 14). This simplifies to 15Y + 14(15/2) =…

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Comments

5026Mar 18, 2025

this pattern comes up frequently

SohiniAug 17, 2024

thanks

What this question tests

What it tests

Your fluency with the order of operations, fractions, decimals, and basic number sense — the foundation every quant question leans on.

Common trap

Applying the order of operations out of sequence or rounding intermediate values before the final step.