CDS 2013 PYQ with Answer — The mean of 7 observations is 7. If each observation is increased by… | UPSC One

Atlas Essay Optional Vistaar

Practice previous-year questions with verified answers and detailed explanations, in English and Hindi — Prelims and Mains, CAPF, CDS and EPFO — with topper copies, study circles and mentors on one focused desk.

Have a question, suggestion, or feedback?

SearchGet in touch on Telegram

Get startedSign in

Products

Prelims
PYQ Explorer
Test Center
Answer Practice
Topper Copies
Atlas
Current Affairs
Vistaar Tracker
Study Circles
Mentors
Interview Transcripts
Premium

Company

About
What's New
Testimonials
Feedback Wall
Help & FAQ

Legal

Privacy Policy
Terms of Service

UPSCOne © 2026 UPSCOne. All rights reserved.

Atlas Essay Optional Vistaar

UPSC CDSCombined Defence Services Overview

Test Series

Daily Quiz
Mock Tests
All-India Test

Study

Syllabus
PYQs
Trends
Practice

Progress

Analytics
Rankings
Results

AI Tools

AI Doubts
AI Quiz

Overview Daily Quiz Mock Tests All-India PYQs Practice

CDS 2013 · Elementary Mathematics (CDS-I)Q93

Back to the full 2013 paper

2013 · Q93

The mean of 7 observations is 7. If each observation is increased by 2, then the new mean is

Elementary MathematicsStatistics

A12
B10
C9
D8

Explanation

7+2=9. Answer C.

Previous question Next question