Data Sufficiency Questions, Tips and Method _ Bank Exams Today

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Data SufficiencyData SufficiencyQuestions, TipsQuestions, Tips

and Methodand Method

By: By: Ramandeep SinghRamandeep Singh on Saturday,on Saturday,

August 24, 2013August 24, 2013

ataata 66 11 77 99 33 11 44

H O M EH O M E M Y N O T E SM Y N O T E S P R E P D V DP R E P D V D I B P S B O O K SI B P S B O O K S C O A C H I N GC O A C H I N G

O N L I N E T E S T SO N L I N E T E S T S S H O R T C U T SS H O R T C U T S B O O K SB O O K S T O PT O P



www.IBPStoday.comwww.IBPStoday.com

P O P U L A R P O S T SP O P U L A R P O S T S

DD sufficiency is an important partsufficiency is an important partof of quantitative aptitudequantitative aptitudesection of every competitive examsection of every competitive exam

including including IBPSIBPS, LIC, Civil services, , LIC, Civil services, CATCAT

and and GMATGMAT. In almost every exam. In almost every exam

there are several questions fromthere are several questions from

data sufficiency.data sufficiency.

Most of the candidates try to solveMost of the candidates try to solve

data sufficiency questions by guessdata sufficiency questions by guess

work. As every question carries samework. As every question carries same

marks, questions in this part alsomarks, questions in this part also

deserve some time. Instead of guessdeserve some time. Instead of guess

work use a simple strategy as givework use a simple strategy as give

below and avoid guessing thebelow and avoid guessing the

answer.answer.

SSTEPSTEPS ININ SOLVINGSOLVING D DATAATASSUFFICIENCYUFFICIENCY QUESTIONSQUESTIONS

1) Read the given problem. Don't1) Read the given problem. Don't

assume anything except universalassume anything except universal

facts.facts.

2) Take the first statement and2) Take the first statement and

combine it with main statement. Trycombine it with main statement. Try

to find the answer.to find the answer.

3) If you are unable to find the3) If you are unable to find the

answer using 2nd step then combineanswer using 2nd step then combine

second statement and combine itsecond statement and combine it

with main statement and try to findwith main statement and try to find

answer.answer.

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answer.answer.

4) If you are unable to find an answer4) If you are unable to find an answer

using second statement then addusing second statement then add

both statements with mainboth statements with main

statement and try to find answerstatement and try to find answer

5) If even now you can't find answer,5) If even now you can't find answer,

simply tick both statements aresimply tick both statements are

insufficient.insufficient.

Directions :-Directions :-

Marks A as answer if statement IMarks A as answer if statement I

alone is sufficient to answer thealone is sufficient to answer the

questionquestion

Marks B as answer if statement IIMarks B as answer if statement II

alone is sufficient to answer thealone is sufficient to answer the

questionquestion

Marks C as answer if statement I andMarks C as answer if statement I and

II together are sufficient to answerII together are sufficient to answer

the question but neither statementthe question but neither statement

aloneis sufficient to answer thealoneis sufficient to answer the

questionquestion

DDATAATA S SUFFICIENCYUFFICIENCYQUESTIONSQUESTIONS ANDAND ANSWERSANSWERS

Question 1.Question 1. How many people are How many people are

there in the plain ?there in the plain ?

Statement I : 25% passengers areStatement I : 25% passengers are

women and 35% are children.women and 35% are children.

Statement II : There are 24 men inStatement II : There are 24 men in

the plainthe plain

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the plainthe plain

AnswerAnswer

From Statement I we can concludeFrom Statement I we can conclude

that there are 40% men in the plainthat there are 40% men in the plain

but we can't find the exact number ofbut we can't find the exact number of

passengerspassengers

From Statement two : Number ofFrom Statement two : Number of

men passengers = 24men passengers = 24

By combining both the statementsBy combining both the statements

we get, total number of passengers =we get, total number of passengers =

24 * 100/40 = ( you dont need to24 * 100/40 = ( you dont need to

calculate the answer )calculate the answer )

Hence answer is CHence answer is C

Question 2.Question 2. What is the difference What is the difference

between monthly income of Ram andbetween monthly income of Ram and

ChaaruChaaru

Statement I : Ram earns Rs 6000 lessStatement I : Ram earns Rs 6000 less

than Shaamthan Shaam

Statement II : Chaaru earns Rs 6000Statement II : Chaaru earns Rs 6000

more than Shaam.more than Shaam.

AnswerAnswer : In this question we don't : In this question we don't

need to in depth. Simply there isneed to in depth. Simply there is

difference of Rs 12000 difference of Rs 12000

Question 3.Question 3. Is x divisible by 28 ? Is x divisible by 28 ?

Statement I : x is divisible by 20Statement I : x is divisible by 20

Statement II : x is divisible by 84Statement II : x is divisible by 84

Answer.Answer. Using statement I - x is Using statement I - x is

divisible by 4 and 5divisible by 4 and 5

Using statement II - x is divisible byUsing statement II - x is divisible by

3,4, and 7.3,4, and 7.

By using both statements we canBy using both statements we can



By using both statements we canBy using both statements we can

conclude that x is divisible by 28 (conclude that x is divisible by 28 (

4*7), hence answer is C.4*7), hence answer is C.

Question 4.Question 4. P,Q,R,S and T are five P,Q,R,S and T are five

friends. Their mean age is 18. What isfriends. Their mean age is 18. What is

the age of R ?the age of R ?

Statement I : P's age is 18Statement I : P's age is 18

Statement II : Q's age is 2 years lessStatement II : Q's age is 2 years less

than T and T's age is 6 years less thanthan T and T's age is 6 years less than

S.S.

Statement III : R's age is 6 years moreStatement III : R's age is 6 years more

than B's age and 4 years more thanthan B's age and 4 years more than

T's age.T's age.

Answer :Answer : P+Q+R+S+T = 90 P+Q+R+S+T = 90

From Statement I : Q+R+S+T = 72From Statement I : Q+R+S+T = 72

From Statement II : Q = T - 2 and T=S -From Statement II : Q = T - 2 and T=S -

66

So S = T + 6So S = T + 6

Statement III : R = Q+6 and R = T + 4Statement III : R = Q+6 and R = T + 4

Age of every friend can be defined inAge of every friend can be defined in

terms of T's age by using all threeterms of T's age by using all three

statements. So we can reach thestatements. So we can reach the

answer using all three statements.answer using all three statements.

Hence answer is C.Hence answer is C.

TTIPSIPS TOTO SOLVESOLVE D DATAATASSUFFICIENCYUFFICIENCY QUESTIONSQUESTIONS

Never try to reach finalNever try to reach final

answer as it is not asked.answer as it is not asked.

You need to findYou need to find



You need to findYou need to find

whether the informationwhether the information

provided is enough to solveprovided is enough to solve

the given problem or not.the given problem or not.

Never make anyNever make any

assumption. Use onlyassumption. Use only

universal rules { eg. a + b =universal rules { eg. a + b =

a + b - (a U b) }a + b - (a U b) }

Try to solve questions byTry to solve questions by

using above strategies using above strategies

Solve question step by step.Solve question step by step.

First try to find answer usingFirst try to find answer using

first statement then secondfirst statement then second

and finally with both. Thenand finally with both. Then

mark the answermark the answer

Even if you find answer withEven if you find answer with

only one statement, then tryonly one statement, then try

to find answer withto find answer with

remaining statement asremaining statement as

sometimes there is ansometimes there is an

option that answer can beoption that answer can be

find with both statementsfind with both statements

separately.separately.

Move on quickly and markMove on quickly and mark

answer can't be found inanswer can't be found in

case you are unable to reachcase you are unable to reach

any conclusion withany conclusion with

information provided.information provided.

Hope you like the article, in case ofHope you like the article, in case of



Hope you like the article, in case ofHope you like the article, in case of

any query or revision in article,any query or revision in article,

please comment below.please comment below.

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RepliesReplies

October 12, 2013 at 12:07 PMOctober 12, 2013 at 12:07 PM

ReplyReply

1. RAMAN2572RAMAN2572

Download revision notesDownload revision notes

herehere

http://www.bankexamstoday.com/2012/10/study-http://www.bankexamstoday.com/2012/10/study-

notes-for-ibps-bank-notes-for-ibps-bank-

exams-govt-jobs.htmlexams-govt-jobs.html


ReplyReply

2. RAMAN2572RAMAN2572

What is the problem ?What is the problem ?


ReplyReply

3. GOURAV KR JHAGOURAV KR JHA

i don't understand youi don't understand you

provide the tips for dataprovide the tips for data

sufficiency.sufficiency.

October 22, 2013 at 5:45 PMOctober 22, 2013 at 5:45 PM1. Ramandeep SinghRamandeep Singh

Please try to solvePlease try to solve

some questionssome questions

yourselfyourself


4. GOURAV KR JHAGOURAV KR JHA



Thanks for commenting. It's veryThanks for commenting. It's very

difficult to answer every query here,difficult to answer every query here,

it's better to post your query onit's better to post your query on

IBPSToday.comIBPSToday.com

ReplyReply

i am very weak in englishi am very weak in english

paper and data sufficiencypaper and data sufficiency

part so you solve thesepart so you solve these

problemproblem

November 25, 2013 at 11:28 AMNovember 25, 2013 at 11:28 AM

ReplyReply

5. SHERIN SHAJUSHERIN SHAJU

iam so happy what u areiam so happy what u are

provided... thankuprovided... thanku

November 25, 2013 at 11:32 AMNovember 25, 2013 at 11:32 AM

ReplyReply

6. SHERIN SHAJUSHERIN SHAJU

thanks for your plan........thanks for your plan........

April 15, 2014 at 7:56 PMApril 15, 2014 at 7:56 PM

ReplyReply

7. ANONYMOUSANONYMOUS

Please guide me how toPlease guide me how to

prepare for sbi p.o examsprepare for sbi p.o exams

and also which book isand also which book is

best for self studybest for self study



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Data Sufficiency Questions, Tips and Method _ Bank Exams Today