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Showing posts with label Reasoning. Show all posts
Showing posts with label Reasoning. Show all posts

REASONING ABILITY WORK OUT QUESTIONS



1. (a) What is the probability of rolling a pair of dice and obtaining a total score of 9 or more? (b) What is the probability of rolling a pair of dice and obtaining a total score of 7?

2. A box contains four black pieces of cloth, two striped pieces, and six dotted pieces. A piece is selected randomly and then placed back in the box. A second piece is selected randomly. What is the probability that:

a. both pieces are dotted?
b. the first piece is black and the second piece is dotted?
c. one piece is black and one piece is striped?

3. A card is drawn at random from a deck. 
(a) What is the probability that it is an ace or a king?
 (b) What is the probability that it is either a red card or a black card?



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4. The probability that you will win a game is 0.45. 
(a) If you play the game 80 times, what is the most likely number of wins? 
(b) What are the mean and standard deviation of a binomial distribution with ? = 0.45 and N = 80?

5. A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?

6. When Susan and Jessica play a card game, Susan wins 60% of the time. If they play 9 games, what is the probability that Jessica will have won more games than Susan?

7. You flip a coin three times. (a) What is the probability of getting heads on only one of your flips? (b) What is the probability of getting heads on at least one flip?

8. A test correctly identifies a disease in 95% of people who have it. It correctly identifies no disease in 94% of people who do not have it. In the population, 3% of the people have the disease. What is the probability that you have the disease if you tested positive?

9. A jar contains 10 blue marbles, 5 red marbles, 4 green marbles, and 1 yellow marble. Two marbles are chosen (without replacement). (a) What is the probability that one will be green and the other red? (b) What is the probability that one will be blue and the other yellow?

10. You roll a fair die five times, and you get a 6 each time. What is the probability that you get a 6 on the next roll?

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EASY WAY TO FIND BLOOD RELATIONS - REASONING QUESTIONS


EXAM TIPS : VIJAYA MANTHRA 
Blood Relation questions appear frequently in aptitude based exams. They are often successful in confusing us and we end up wasting precious time and valuable marks.
Here is a structured three-step approach that will help you in several ways.
One, it will help you avoid any confusion and lay out the question. Secondly, it will help you make faster decisions.

Remember, blood relation questions are just a complex way to put forward a simple relationship.

So here is the mantra to solve these questions: GIG

What is GIG. Lets go over it in three steps as I promised.
Generation:
Note down the generation to which each person in the question belongs.

Say you are Generation 0, your Dad is Generation 1 and your son (ya ya, you are too young, but say just for example) is Generation -1, your Grandfather is Generation 2, and your Grandson is Generation -2.
So a father or a mother or uncle or aunt belongs to generation +1 and son or a daughter or nephew is Generation -1

Note down the generations in this question:
Pointing towards Pappu, Billu said “I am the only son of his father’s one of the sons”. How
Pappu is related to Billu?
Say Pappu is Generation 0
Pappu’s father is Generation 1
One of Pappu’s father’s son is also Generation 0
Billu is the “son” of One of Pappu’s father’s son – So Billu is Generation -1

Indirect or Direct Relation:
As the title suggests, you must identify whether the relation between two persons is direct or it involves someone in between.
Here is an easy way to understand it.
A husband and wife have a direct relationship so do a father and a son.
However, a mother-in-law and a daughter-in-law do not have a direct relationship, there must be another person who is mother-in-law’s son and daughter-in-law’s husband in between.
This is the component that adds the trick to blood relation questions. If you solve this piece you will certainly be able to answer your question.

Gender:
This is the final piece of the puzzle. You need to identify whether the person being talked about is male or female.
Sometimes its easy sometimes it may not be clear.

Example:

 An uncle and a nephew. In this indirect relationship, The intermediate person could be male (uncle’s brother and the nephew’s father) or female (uncle’s sister and the nephew’s mother). You must make a note of this and solve this part from other information in the question.
Lets solve a question to put the GIG strategy into action.
If Bipasha says, “Asha’s father Raj is the only son of my father-in-law, Sanjay”; How is Katrina related to Sanjay. Katrina is Asha’s sister?
(1) Daughter (2) Wife (3) Daughter-in-law (4) Niece  (5) Grand-daughter
(2)
Now, first things first, Do Not Worry. You will be able to solve it.

Generation:

Say Asha is Generation 0
Katrina is Asha’s sister so Katrina is also Generation 0
Raj is Asha’s father so he is Generation 1
Raj is the Son of Sanjay so Sanjay is Generation 2
Bipasha is Sanjay’s daughter-in-law so she is Generation 1

Indirect or Direct Relationship:

Sanjay is Bipasha’s father-in-law, therefore there is Bipasha’s husband and Sanjay’s son who is the link in between.
Question says Raj is Sanjay’s son – So one new information. Raj is Bipasha’s husband.
Raj is Asha’s father, which also means Asha is also Bipasha’s daughter and Sanjay’s Ganddaughter.

Gender:

Katrina is Asha’s sister (female), so Katrina is Sanjay’s Grand-daughter.
Go ahead and try some questions. I am sure you will find it much easier now.

 Source : Internet

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REASONING - BLOOD RELATION PROBLEMS



 Blood Relationship Questions 
1. Pointing to a man, a woman said, "His mother is the only daughter of my mother." How is the woman related to the man?
  • a) Mother
  • b) Daughter
  • c) Sister
  • d) Grand Mother

2. E is the sister of B, A is the father of C. B is the son of C. How is A related to E?
  • a) Grandfather
  • b) Granddaughter
  • c) Father
  • d) Great-grandfather

3. If X is the brother of the son of Y's son, then how is X related to Y?
  • a) Son
  • b) Brother
  • c) Nephew
  • d) Grandson

4. If A is the father of B and B is the mother of C and C is the daughter of D, then what is the relation between A and D?
  • a) Son-in-Law
  • b) Father-in-Law
  • c) Sister-in-Law
  • d) Brother-in-Law

5. Pointing to a photograph, a woman says, "This man's son's sister is my mother-in-law." How is the woman's husband related to the man in the photograph ?
  • a) Grandson
  • b) Son
  • c) Son-in-Law
  • d) Uncle

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REASONING - TRY ODD ONE







Find The Odd One Out (word/number pair/number) from the given alternative?
1.  Iron Box, Mixie, Computer, Gas Stove
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) Iron Box
  • b) Mixie
  • c) Computer
  • d) Gas Stove

2.  Tortoise, Crab, Frog, Fish
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) Tortoise
  • b) Crab
  • c) Frog
  • d) Fish

3.  13, 17, 23, 63, 71
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) 63
  • b) 17
  • c) 13
  • d) 23

4.  (64, 83), (100, 121), (16, 25), (36, 49)
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) 64, 83
  • b) 100, 121
  • c) 16, 25
  • d) 36, 49

5.  (9 - 72), (10 - 90), (8 - 56), (11 - 115)
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) 9 - 72
  • b) 10 - 90
  • c) 8 - 56
  • d) 11 - 115

6.  Jeevan Raksha Padak, Param Vir Chakra, Padma Bhusan, Bharat Ratna
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) Jeevan Raksha Padak
  • b) Param Vir Chakra
  • c) Padma Bhusan
  • d) Bharat Ratna

7.  Milk, Ghee, Paneer, Butter
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) Milk
  • b) Ghee
  • c) Paneer
  • d) Butter

8.  Which word will appear fourth in the dictionary?
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) Solitaire
  • b) Soliloquy
  • c) Solitary
  • d) Solitude

9.  7, 8, 12, 20, 37, 62
[SSC FCI Combined Asstt. Grade-III Exam 2012]
  • a) 37
  • b) 62
  • c) 12
  • d) 20


10.  1, 8, 27, 65, 125, 216
  • a) 1
  • b) 65
  • c) 125
  • d) 216

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REASONING - ANALOGY QUESTIONS



1. Doctor : Nurse :: ? : Follower


  1. Employer
  2. Leader
  3. Worker
  4. Manager

2. Moon : Satellite :: Earth : ?


  1. Sun
  2. Planet
  3. Solar System
  4. Asteroid

3. Fear : Threat :: Anger : ?


  1. Compulsion
  2. Panic
  3. Provocation
  4. Force

4. Clock : Time :: Thermometer : ?


  1. Heat
  2. Radiation
  3. Energy
  4. Temperature

5. CUP : LIP :: BIRD : ?


  1. BUSH
  2. GRASS
  3. FOREST
  4. BEAK
PICK CORRECT ANSWER FROM THE GIVEN OPTION, COMMENT IT BELOW
Time - 07:15 PM To 08:15 PM - 13/05/2015




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REASONING - NUMBER SERIES



1. Look at this series: F2, __, D8, C16, B32, ... What number should fill the blank?

 Answer and Solution :  E4
The letters decrease by 1; the numbers are multiplied by 2. 

2. Look at this series: 664, 332, 340, 170, ____, 89, ... What number should fill the blank?

 Answer and Solution : 178This is an alternating division and addition series: First, divide by 2, and then add 8.

3.  Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?

 Answer and Solution : XVIIThis is a simple addition series; each number is 3 more than the previous number.  

 4. Look at this series: 70, 71, 76, __, 81, 86, 70, 91, ... What number should fill the blank?

 Answer and Solution : 70In this series, 5 is added to the previous number; the number 70 is inserted as every third number.  

 5. Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank?

 Answer and Solution : 14This is a simple alternating addition and subtraction series. The first series begins with 8 and adds 3; the second begins with 43 and subtracts 2. 


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NUMERICAL REASONING - SECRETARIAT ASSISTANT SPECIAL


 
1. Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

Answer and Solution :    (1/8)
This is a simple division series; each number is one-half of the previous number.
In other terms to say, the number is divided by 2 successively to get the next result.
4/2 = 2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8 and so on.


 


 

2. Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?



Answer and Solution :   10 

 This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted. 







3. Look at this series: 36, 34, 30, 28, 24, ... What number should come next? 



Answer and Solution :    22

This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.  








 4. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?



Answer and Solution :    25

 In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on. 







5.  Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?





Answer and Solution :   14

 In this series, each number is repeated, then 13 is subtracted to arrive at the next number. 










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APTITUDE QUESTIONS - REASONING BEGINNERS














(1) In a chess tournament each of six players will play every other 
player exactly once. How many matches will be played during the 
tournament ?






    

  • 12
    • 

  • 15
    • 

  • 30
    • 

  • 36
    • 








Answer:   Option B  





Explanation:



I. matches of first player with other 5 players




II. matches of second player with 4 players other than the first player




III. matches of third player with 3 players other than the first player and second player.




IV. matches of fourth player with 2 players other than the first player, second player and third player.




V. matches of fifth player with 1 player other than the first player, second player, third player and fourth player.




So total matches will be 5+4+3+2+1 = 15











(2) I have a few sweets to be distributed. If I
 keep 2, 3 or 4 in a pack, I am left with one sweet. If I keep 5 in a 
pack, I am left with none. What is the minimum number of sweets I have 
to pack and distribute ?




    

  • 25
    • 

  • 37
    • 

  • 54
    • 

  • 65
    • 








Answer:   Option A



Explanation:

The
 required number will be such that it leaves a reminder of 1 when 
divided by 2, 3 or 4 and no reminder when divided by 5. Such a number is
 25 among options













 (3) A certain number of horses and an equal number of men are going 
somewhere. Half of the owners are on their horses' back while the 
remaining ones are walking along leading their horses. If the number of 
legs walking on the ground is 70, how many horses are there ?






    

  • 8
    • 

  • 10
    • 

  • 12
    • 

  • 14 
    • 










Answer:   Option D



Explanation:

Let number of horses = number of men = x.


Then, number of legs = 4x + 2 x (x/2) = 5x.


So, 5X = 70 or x = 14.









 (4) A is three times as old as B. C was twice-as old as A four years 
ago. In four years' time, A will be 31. What are the present ages of B 
and C ?




    

  • 9, 46
    • 

  • 9, 50
    • 

  • 10, 46
    • 

  • 10, 50
    • 








Answer:   Option B



Explanation:

As from the question we have,

A = 3B         --- (i)

c - 4 = 2(A+4) ---(ii)


Also, A + 4 = 31

or A = 31-4 = 27


Putting A = 27 in (i) we get

B = 9

Putting A = 27 in (ii) we get

C = 50









(5) Reena is twice as old as Sunita. Three years ago, she was three times as old as Sunita. How old is Reena now ?




    

  • 6 years
    • 

  • 12 years
    • 

  • 14 years
    • 

  • 16 years
    • 








Answer:   Option B



Explanation:

Let Sunita's present age = x years

Then Reena present age = 2x years


Three years ago

(2x-3) = 3(x-3)

2x - 3 = 3x - 9

or x = 6


Reena age = 2x = 2*6 = 12 year.


















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