If we let x denote the sum of the integers from 1 to 25, and let y denote the sum of the integers from 26 to 50, what is the result of y – x?

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325

425

625

Correct

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Official Explanation

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Let x represent the sum of the integers from 1 to 25, and let y represent the sum of the integers from 26 to 50. We need to find the value of y – x. First, we calculate x: x = 1 + 2 + 3 + ... + 25. Next, we express y in terms of x. Each integer in y is 25 greater than its corresponding integer in…

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Comments

FluffyApr 10, 2025

thanks a lot

HassanDec 28, 2024

thanks for posting

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.