The sum of first 50 odd natural numbers is Options: A . &nbsp5200 B . &nbsp1000 C . &nbsp1250 D . &nbsp2500

The sum of first 50 odd natural numbers is

Question

The sum of first 50 odd natural numbers is

Options:

A . 5200

B . 1000

C . 1250

D . 2500

Answer: Option D
Answer: (d)S = 1 + 3 + 5 + ..... to 50 termsHere, a = 1; d = 3 – 1 = 2; n = 50S = $n/2[2a + (n - 1)d]$= $50/2[2×1+ (50 - 1) ×2]$= 25 (2 + 98) = 25 × 100 = 2500

Was this answer helpful ?

Next Question

Submit Comment/FeedBack

Latest Videos

Chapter 1 - GLOBAL STEEL SCENARIO & INDI Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Latest Test Papers

Chapter 3.1 : Overview of Finance & Acco Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024

Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024

Chapter 1.1 : Personnel Functions- An ov Chapter 1 : Personnel Management SAIL E0 - GFM 2024

GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024

CBT Mixed Test 1 GPOE/GPA SAIL E0 2024

Menu

Popular Courses

Search

Submit Comment/FeedBack

More Questions on This Topic :

Latest Videos

Latest Test Papers