If you list all the odd numbers from 1 to 100, what is the sum of the first 50 odd numbers?

Category: Math · Difficulty: expert

Hint: Use the formula for the sum of an arithmetic series.

Answer

2500

Explanation

The sum of the first n odd numbers is n². Thus, for n = 50, the sum is 50² = 2500.

This is a expert math riddle — one of the harder riddles here. The answer is 2500.

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