Question : What is the average of first 10 natural numbers?
Option 1: 5.5
Option 2: 10
Option 3: 5
Option 4: 10.5
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 5.5
Solution : Average = $\frac{\text{Sum of observations}}{\text{number of observations}}$ Average of first $n$ natural numbers = $\frac{n + 1}{2}$ Here $n$ = 10 ⇒ $\frac{10 + 1}{2}=\frac{11}{2}= 5.5$ Hence, the correct answer is 5.5.
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Question : What is the average of the squares of the first five natural numbers?
Option 1: 11.5
Option 3: 12.5
Option 4: 11
Question : There are 32 consecutive natural numbers. The average of the first 13 numbers is $x$. What is the average of the next 19 numbers?
Option 1: $x+15$
Option 2: $x+16$
Option 3: $x+17$
Option 4: $x+18$
Question : What is the average of the first 10 even numbers?
Option 1: 12
Option 3: 13
Question : The average of 5 consecutive natural numbers is 43. The largest of these numbers is:
Option 1: 41
Option 2: 43
Option 3: 45
Option 4: 46
Question : What is the average of the cubes of the first 7 natural numbers?
Option 1: 84
Option 2: 105
Option 3: 96
Option 4: 112
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile