GATE 2024 MA – Question 4
General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 1 mark · Multiple choice
Divide the sum of the first twenty consecutive positive odd numbers by 20². Find the result.
- 1
- 20
- 2
- 1/2
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Show answer and explanation
Correct answer: (A) 1
Explanation
The sum 1+3+…+(2n−1)=n². For n=20 the numerator is 400, equal to denominator 20². Result **1, A**.
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