Given a set of n rays in plane, we define a reversal as the operation of reversing precisely one ray obtaining a new set of n rays. If n=2001 and k reversals are performed such that all the rays are reversed, then a possible value of k is?

Question

Harshit Singh · Answer

Dear Student
There are n rays.
If we reverse all of them, we would have a complete reversed set after n reversals. After that any reversal that we perform has to be undone with another reversal to obtain complete reversal.
We can have a complete reversal after k reversals if k = n + 2m (m ∈ N). i.e., k could be some number greater than (or equal to) n and of the same type (even/odd)
So n = 2001 then k = 2001 + 2m
So k = 2011

Thanks

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Guest

Given a set of n rays in plane, we define a reversal as the operation of reversing precisely one ray obtaining a new set of n rays. If n=2001 and k reversals are performed such that all the rays are reversed, then a possible value of k is?

Given a set of n rays in plane, we define a reversal as the operation of reversing precisely one ray obtaining a new set of n rays. If n=2001 and k reversals are performed such that all the rays are reversed, then a possible value of k is?

1 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on Algebra

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Guest

IIT JEE Courses

One Year IIT Programme

Two Year IIT Programme

Crash Course

NEET Courses

One Year NEET Programme

Two Year NEET Programme

One to One

School Board

Live Online classes

Class 11 & 12

Class 9 & 10

Class 6, 7 & 8

Test Series

JEE test series

NEET test series

C.B.S.E test series

Complete Self Study Packages

FULL COURSE

For class 12th

For class 11th

Given a set of n rays in plane, we define a reversal as the operation of reversing precisely one ray obtaining a new set of n rays. If n=2001 and k reversals are performed such that all the rays are reversed, then a possible value of k is?

Given a set of n rays in plane, we define a reversal as the operation of reversing precisely one ray obtaining a new set of n rays. If n=2001 and k reversals are performed such that all the rays are reversed, then a possible value of k is?

1 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on Algebra

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship