menu
search
Log In
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true

Most popular tags

quantitative-aptitude english-language logical-reasoning passage-reading cat1997 cat1995 cat1996 cat1998 cat1999 cat2000 cat2003-1 nielit2019feb-scientistd nielit2019feb-scientistc cat2001 cat2003-2 cat2002 verbal-ability data-interpretation sequences&series cat2004 nielit2016mar-scientistd cat2019-2 cat2018-2 cat2018-1 cat2017-2 cat2017-1 cat2016 cat2015 cat2019-1 general-awareness cat2005 cat2008 logic-puzzles cat2014 cat2006 cat2007 cat1994 multiple-sub-parts computer-knowledge numerical-answer attitude-and-leadership nielit2016dec-scientistb nielit2017oct-assistanta nielit2017dec-assistanta nielit2017july-scientistb nielit2017dec-scientistb cat2013 cat2012 cat2011 cat2010 appropriate-word tabular-data word-pairs percentage nielit2020nov-scientistb geometry ratio-proportion sentence-formation odd-one-out time-and-distance sentence-rearrangement paragraph-construction cat2009 work-time profit-loss number-series numerical-ability most-appropriate-alternative graphs bars-charts speed-distance-time statements-conclusions seating-arrangement nielit2016mar-scientistc some-all-none fill-the-blank algebra nielit2016mar-scientistb syllogism blood-relation code-language equations alphanumeric-series pie-chart fact-judgemeant-inference lcm-hcf triangle error-spotting quadratic-equations data-sufficiency decision-making sets probability direction-sense permutation functions ages statement-sufficiency clocks fractions

NIELIT 2019 Feb Scientist D - Section A: 18

1 vote
87 views

Read the following information carefully and answer the questions given below :

  1. Five students Sujit, Randhir, Neena, Mihir and Vinay have total five books on subjects Physics, Chemistry, Maths, Biology and English written by authors Gupta, Khanna, Harish, D'Souza and Edwin.Each student has only book on one of the five subjects.
  2. Gupta is the author of Physics book, which is not owned by Vinay or Sujit.
  3. Mihir owns the book written by Edwin.
  4. Neena owns Maths book. Vinay has English book, which is not written by Khanna. Biology book is written by D'Souza.

Who is the author of Chemistry book?

  1. Harish only
  2. Edwin only
  3. Khanna or Harish
  4. Edwin or Khanna
in Logical Reasoning 9.3k points ●31 ●523 ●813
retagged by 87 views

1 Answer

0 votes

Ans is option (B)

From the given data, I will fill information in two tables(namely Subject-Student-Author and Author-Subject).

→ Correct entries are marked in bold letters in each cell.

After analyzing the information, we get the tables as:

  Subject-Student-Author Table
Subject Chemistry/Biology

Physics/Chemistry/

Biology

 Maths

Physics/Chemistry/

Biology

 English
Student         Sujit             Randhir Neena                Mihir      Vinay
Author

Khanna/Harish/

Edwin/D’Souza

Gupta/Khanna/

Harish/Edwin/

D’Souza

Khanna/Harish/

Edwin

               Edwin Harish/Edwin

 

Author-Subject Table
Author Gupta Khanna Harish D’Souza Edwin
Subject Physics Chemistry/Maths English/Chemistry/Maths Biology English/Chemistry/Maths

 

It is given that the Physics book is not owned by neither Sujit nor Vinay. Also, since Neena has Maths book and Vinay has English book, we get two possibilities for Physics book owner i.e. Mihir and Randhir. Now, since Mihir owns a book written by Edwin(who is not the author of Physics book), we can safely say that  Randhir owns the Physics book, and hence Randhir’s book details will be  Physics-Randhir-Gupta..

Now, since Khanna is not the author of the English book, English as a subject can be placed as a possibility only in Harish and Edwin’s column in Author-Subject table. Now, in the Subject-student-author table, in the Vinay’s book details, we can only place Harish as Edwin is already present in Mihir’s book details. So, Vinay has English book written by Harish.

Now, in Neena’s book details, we have Khanna/Harish/Edwin, from which Harish and Edwin can be safely removed. So, Khanna is the author of Maths book.

Also, Edwin’s subject possiblities were English, Chemistry and Maths, from which English and Maths can be safely removed(their respective authors being Harish and Khanna). So, Edwin is the author of Chemistry book. Also, under Sujit’s book details, Khanna,Harish and Edwin can be safely removed now, which confirms the fact that D’Souza is the author of Biology book.

Now, summarizing all the results, we get the two final tables as:

Subject      Biology

        Physics

      Maths

      Chemistry

     English
Student         Sujit          Randhir      Neena            Mihir      Vinay
Author

     D’Souza

        Gupta

     Khanna

         Edwin      Harish

 

Author Gupta     Khanna      Harish    D’Souza Edwin
Subject Physics     Maths      English    Biology Chemistry

 

So,the chemitry book is written by Edwin only.

238 points ●2 ●2 ●4
← Prev. Next →
← Prev. Qn. in Cat. Next Qn. in Cat. →

Related questions

1 vote
1 answer
1
86 views
NIELIT 2019 Feb Scientist D - Section A: 9
If water is called blue, blue is called red, red is called white, white is called sky, sky is called rain, rain is called green, green is called air and air is called table, which of the following is the colour of milk? White Rain Sky Green
If water is called blue, blue is called red, red is called white, white is called sky, sky is called rain, rain is called green, green is called air and air is called table, which of the following is the colour of milk? White Rain Sky Green
asked Apr 3, 2020 in Logical Reasoning Lakshman Patel RJIT 9.3k points ●31 ●523 ●813 86 views
1 vote
1 answer
2
134 views
NIELIT 2019 Feb Scientist D - Section A: 10
Prabhat remembers that his mother's birthday is after $17^{th}$ April but before $21^{st}$ April, whereas his sister Urmila remembers that their mother's birthday is after $19^{th}$ but before $24^{th}$ April. Which of the following days in April is definitely their mother's birthday ? $19^{th}$ $21^{st}$ $22^{nd}$ $20^{th}$
Prabhat remembers that his mother's birthday is after $17^{th}$ April but before $21^{st}$ April, whereas his sister Urmila remembers that their mother's birthday is after $19^{th}$ but before $24^{th}$ April. Which of the following days in April is definitely their mother's birthday ? $19^{th}$ $21^{st}$ $22^{nd}$ $20^{th}$
asked Apr 3, 2020 in Logical Reasoning Lakshman Patel RJIT 9.3k points ●31 ●523 ●813 134 views
1 vote
1 answer
3
110 views
NIELIT 2019 Feb Scientist D - Section A: 12
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no ... of $C$ and is neither a psychologist nor an economist. Who is the Professor of Philosophy ? $A$ $B$ $C$ $D$
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no specialisation in any subject and are ... is the brother of $C$ and is neither a psychologist nor an economist. Who is the Professor of Philosophy ? $A$ $B$ $C$ $D$
asked Apr 3, 2020 in Logical Reasoning Lakshman Patel RJIT 9.3k points ●31 ●523 ●813 110 views
1 vote
0 answers
4
85 views
NIELIT 2019 Feb Scientist D - Section A: 13
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no specialisation in ... brother of $C$ and is neither a psychologist nor an economist. Who is the wife of $E$? $A$ $B$ $C$ $D$
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no specialisation in any subject and are married. No ... $C$ and is neither a psychologist nor an economist. Who is the wife of $E$? $A$ $B$ $C$ $D$
asked Apr 3, 2020 in Logical Reasoning Lakshman Patel RJIT 9.3k points ●31 ●523 ●813 85 views
1 vote
1 answer
5
212 views
NIELIT 2019 Feb Scientist D - Section A: 14
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no ... and is neither a psychologist nor an economist. Which of the following groups includes all the men ? $ABC$ $BCD$ $BC$ $BE$
Use the information given below : There is a group of five persons - $A, B, C,D,$ and $E$. In the group there is a Professor of Philosophy, a Professor of Psychology and a Professor of Economics. $A$ and $D$ are ladies who have no specialisation in any subject and ... of $C$ and is neither a psychologist nor an economist. Which of the following groups includes all the men ? $ABC$ $BCD$ $BC$ $BE$
asked Apr 3, 2020 in Logical Reasoning Lakshman Patel RJIT 9.3k points ●31 ●523 ●813 212 views
Dark theme
Muffin by Hélio Chun
Thanks to Q2A
...