📐 Mathematics · Sequences and Series · JEE

The sum of first 100 natural numbers is:

Answer: 5050.

Correct answer: C. 5050

Explanation: S100 = 100×101/2 = 5050.

Bar heights for AP 2, 5, 8, 11 with the common difference d=3 marked between consecutive terms.

Concept context

Arithmetic progressions, geometric progressions, and sums