Question : The average of nine consecutive numbers is $n$, if the next two numbers are also included the new average will be:
Option 1: increase by 2
Option 2: remain the same
Option 3: increase by 1.5
Option 4: increase by 1
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
Correct Answer: increase by 1
Solution :
Given: The average of nine consecutive numbers is $n$.
So, fifth number = $n$
Tenth number = $n + 5$
Eleventh number = $n + 6$
$\therefore$ New average = $\frac{9n + n + 5 + n + 6}{11}=\frac{(11n+11)}{11} = \frac{(n+1)\times 11}{11} = (n+1)$
Hence, the correct answer is "increases by 1".
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
