Aptitude and Reasoning Questions

Q:

 

The given figures depict the country-wise distribution of the people who visit China for business setup.

 

If in a given year, 500000 people visited China, then the ratio of the number of Americans with the age group between 20 and 40 years to the Russians with the age group below 20 years who visited China is

A) 4:1 B) 1:2
C) 2:1 D) 1:4
 
Answer & Explanation Answer: A) 4:1

Explanation:
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Filed Under: Pie Charts
Exam Prep: Bank Exams

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Q:

The following bar graph indicates the production of sugar (in lakh tonnes) by three different sugar companies P, Q and R over years 2009 to 2013.

Production of Sugar by Companies P, Q and R during 2009 - 2013

1. The percentage increase in production of Company Q from the year 2009 to the year 2013 is :

1. 80%              2. 90%              3. 60%              4. 100%


2. The average production over the years 2009 - 2013 was maximum for the Company(ies):

1. Q                   2. P                   3. R                   4. P and R


3. The percentage rise or fall in production of Company Q as compared to the previous year is the maximum in the year :

1. 2011             2. 2010             3. 2013             4. 2012


4. The percentage of production of Company R to Production of Company Q is the maximum in the year

1. 2010             2. 2009             3. 2011             4. None of these


5. The ratio of the average production of Company P during the years 2011 to 2013 to the average production of Company Q for the same period is :

1. 23 : 25          2. 27 : 29          3. 15 : 17          4. 9 : 11

Answer

1. Answer : 4


 Explanation : Required Percentage =100-5050×100= 100% 


 


2. Answer : 4 


Explanation : The average production of P = 60+90+50+100+805= 76 


The average production of Q =50+70+70+80+1005  = 74 


The average production of R = 70+80+90+70+705 = 76


Maximum average production = P and R both


  


3. Answer : 2 


Explanation : The percentage rise in 2010 =70-5050×100 = 40% 


The percentage rise in 2011 = 70-7070×100= 0% 


The percentage rise in 2012 = 80-7070×100= 14.28% 


The percentage rise in 2013 =100-8080×100 =25% 


 


4. Answer : 2


Explanation : The percentage of production of Company R to production of Company Q  


in 2009 =7050×100 = 140 


in 2010 =8070×100 = 114.28 


in 2011 =9070×100 = 128.57 


in 2012 = 7080×100= 87.5  


in 2013 = 70100×100= 70 


 


 


5. Answer : 1


Explanation : Average production of company P during the years 2011 to 2013 =50+100+803 = 2303 


Average production of company Q during the years 2011 to 2013 =70+80+1003 = 2503


Required ratio = 23 : 25

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Subject: Bar Charts

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Q:

A train 125 m long passes a man, running at 4 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:

A) 49 kmph B) 50 kmph
C) 51 kmph D) 52 kmph
 
Answer & Explanation Answer: A) 49 kmph

Explanation:

Speed of the train relative to man

= (125/10) m/sec = (25/2) m/sec.

[(25/2) x (18/5)] km/hr = 45 km/hr.

Let the speed of the train be 'x' km/hr.

Then, relative speed = (x - 4) km/hr.

x - 4 = 45 => x = 49 km/hr.

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Filed Under: Problems on Trains
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Q:

Derivative of sinx by first principle?

A) -sinx B) -cosx
C) cosx D) sinx
 
Answer & Explanation Answer: C) cosx

Explanation:

Screenshot_(1)1519127168.png image

 

Thus, the derivative of sinx by first principle is cosx.

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Q:

If there are 150 questions in a 3 hr examination. Among these questions 50 are type A problems, which requires twice as much as time be spent on the rest of the type B problems. How many minutes should be spent on type A problems ?

A) 75 min B) 82 min
C) 90 min D) 101 min
 
Answer & Explanation Answer: C) 90 min

Explanation:

Let X = Time taken for each of Type B Problems(100 Problems)
And 2X = Time taken for each of Type A problems(50 problems)

Total time period = 3hrs = 3 x 60min = 180 minutes

100X + 50(2X) = 180
100X + 100X = 180
200X = 180 min

X = 180/200
X = 0.90 min

By convertiing into seconds,

X = 0.90 x 60 seconds
X = 54 sec

So, time taken for Part A problems is = 54 x 2 x 50 = 5400 seconds
= 5400/60sec = 90 minutes.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

If A x B means A is to the south of B; A + B means A is to the north of B; A % B means A is to the east of B; A - B means A is to the west of B; then in P % Q + R - S, S is in which direction with respect to Q ?

A) South-East B) North-West
C) East D) West
 
Answer & Explanation Answer: A) South-East

Explanation:

P % Q + R - S
=> P is to the East of Q, who is to the North of R, who is to the West of S.
=> Q.....P
      R.....S
=> With respect to Q, S is to the South-East of Q.

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Filed Under: Direction Sense Test
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.


D, I, N, S, ?

 

A) Z B)  V
C)  W D)  X
 
Answer & Explanation Answer: D)  X

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

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Q:

The difference between the compound interest and simple interest on an amount of Rs.15000 for two years is Rs.96. what is the rate of interest per annum

A) 8 B) 10
C) 12 D) 13
 
Answer & Explanation Answer: A) 8

Explanation:

[15000 *(1+r/100)^2-15000]-(15000*r*2)/100=96

r=8

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

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