Find the average of the first 20 natural numbers? Options: A . &nbsp10 B . &nbsp11.5 C . &nbsp12 D . &nbsp10.5

Find the average of the first 20 natural numbers?

Question

Find the average of the first 20 natural numbers?

Options:

A . 10

B . 11.5

C . 12

D . 10.5

Answer: Option D

Average of the first 'n' natural numbers = (n + 1)/2
We get (20 + 1)/2 = 10.5

Was this answer helpful ?

Next Question

Question 1. A batsman makes a score of 64 runs in the 16th innings and thus increased his average by 3. Find his average after the ....average by 3. Find his average after the 16th inning?

Question 2. The average of 13 numbers is 60. Average of the first 7 of them is 57 and that of the last 7 is 61. Find the 8th number....of the last 7 is 61. Find the 8th number?

Question 3. The average marks of a class of 30 students is 40 and that of another class of 50 students is 60. Find the average mark....is 60. Find the average marks of all the students?

Question 4. The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months ....is Rs.6500, find his salary for the month of January?

Question 5. The average of 35 numbers is 25. If each number is multiplied by 5, find the new average? ....

Question 6. The average age of a group of 10 persons was decreased by 3 years when one person, whose age was 42 years, was replaced....a new person. Find the age of the new person?

Question 7. Find the average of the series : 312, 162, 132, 142 and 122? ....

Question 8. The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new averag....marks of each student are doubled, find the new average?

Question 9. The average of 10 numbers is 23. If each number is increased by 4, what will the new average be? ....

Question 10. A student scored an average of 80 marks in 3 subjects: Physics, Chemistry and Mathematics. If the average marks in Phys....and Chemistry is 70, what are the marks in Physics?

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

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