Number Series reasoning short tricks

Series is an important chapter from banking examination point of view. Following are some of the important rules or order on which the number series can be made :-

1. Pure Series
2. Difference Series 
3. Ratio Series 
4. Mixed Series
5. Geometric Series
6. Two Tier Arithmetic Series
7. Other Type

1. Pure Series

In this type of number series, the number itself obeys certain order so that the character of the series can be found out.

The number itself may be.

• Perfect Square 

Example :

121, 144, 169, 225 ?

Answer - 256

• Perfect Cube

Example :

6859, 5832, 4913, 4096, 3375, ?

Answer - 2744 

2. Difference Series

Example :

1348, 1338, 1318, 1288, 1248, ?

Answer - 1198

3. Ratio Series

Example :

336, 168, 84, 42, 21, ?

Answer - 10.5

4. Mixed Series

Example : 

222, 441, 1321, 2639, 7915, ?

Answer - 15827

5. Geometric Series

Example 1. 5, 35, 245, 1715, ?

Ans. 12005

Examples 2. 43923,3993, 363, 33, ?

Ans. 3

6. Two-tier Arithmetic Series

7. Other Type

To find the odd number from the number series. In this type of series the above rules are also followed.

Some Examples ;

•  2, 3, 7, 22, 89, 440, 2677, 18740

Solution : ×1+1, ×2+1, ×3+1, ×4+1, ×5+1 ........

 So, 440 is replaced by 446

• 5, 6, 14, 40, 89, 170, 291

Solution : +1², +3², +5², +7², +9²

 So, 14 is replaced by 15.

• 445, 221, 109, 46, 25, 114, 4

Solution : -3÷2, -3÷2........
So,46 is replaced by 53.

• 12, 26, 56, 116, 244, 498, 1008

Solution : ×2+2, ×2+4 ×2+6,  ........

So, 116 is replaced by 118

• 8, 27, 64, 125, 217, 343

Solution : 2³, 3³, 4³, 5³,.....

So, 217 is replaced by 216

Three Steps to Solve A Problem on Series

Step 1. Determine whether the series is increasing, decreasing or alternating.

Step 2. If the series is increasing or decreasing, then check :

1. if change is slow or gradual, then it is a difference series
2. if the change is equally sharp, throughout, then it is a ratio series.
3. if the rise is very sharp initially , but slows down later, then series may be formed by adding squared or cubed numbers

If the series is alternating or irregular , there may be either a mix of two series or two different kinds of operations going on alternately.

Step 3. Complete the series accordingly.

Blood Relation Test - Question and Answer

Q. (1 - 5) Read the information carefully and answer the questions:

Blood Relations Reasoning Shortcut Tricks

In Blood Relations certain information is given about the members of the family in the question, Based on that information we need to find out the relationship between particular member of the family. Generally the question deals with hierarchical structure which is based on seven generation three above & three below like this:

Blood Relations - Shortcut Techniques

Blood Relations - Shortcut Techniques with Practice Questions

By Ramandeep Singh

I've compiled some questions on ‘blood relations’ from here and there and there and here – specially for IBPS Clerical purpose.

I’m going to solve the first two sums for you – with my style of solving to give you an idea – then it’s your song, dance the way you want – I don’t literally mean dancing – it is just a saying!

Reasoning Puzzle Practice Set - 5 Variables

Directions (Q. 1-5) Study the following information carefully and answer the questions given below :-

            Five friends Pawan, Qureshi, Rajan, Sultan and Tango are Musician, Architect, Doctor, Engineer and Artist by profession and like White, Blue, Red, Yellow and Green colour but not necessarily in that order. Their hobbies are Net Surfing, Gardening, Reading, Painting and Dancing but not necessarily in the same order.

• The person whose hobby is dancing preferred lemonade to cola while others preferred cola to lemonade in beverages.
• The four friends who took cola were Pawan, the one who is an Engineer, the person whose favourite colour is Green and the one whose hobby is net surfing.
• Sultan did not take lemonade and his favourite colour is White.
• Qureshi’s favourite colour is Blue. He did not like lemonade.
• Tango’s hobby is not painting, reading or gardening.
• Sultan clicks a picture of his friend who is an Engineer.
• The person whose favourite colour is Red likes painting and the person who is artist likes gardening.
• Sultan is not a doctor. The person who is a doctor takes cola. The person who is an Engineer likes Blue colour.
• The musician’s favourite colour is not Yellow. Rajan’s favourite colour is Green.

Q1. Who among the following is a Doctor?

                 a) Rajan                              b) Pawan                      c) Sultan

                 d) Can’t say                        e) None of these

Q2. Qureshi’s  hobby is

                a) Reading                         b) Painting                      c) Gardening

                d) Can’t say                        e) None of these

Q3. The person who likes Blue colour is a/an

                a) Architect                      b) Musician                       c) Engineer

                d) Can’t say                     e) None of these

Q4. Whose favourite colour is Yellow?

 a) Tango                            b) Rajan                              c) The one who is an artist

 d) Can’t say                        e) None of these

Q5. Which of the following combinations is not correctly matched?

a) Tango-Architect-Yellow-Dancing-Cola

b) Rajan-Artist-Green-Gardening-Cola

c) Qureshi-Engineer-Blue-Reading-Cola

d) Pawan-Doctor-Red-Painting-Cola

e) None of these

Answers
Q 1) B
Q 2) A
Q 3) C
Q 4) A
Q 5) A

Reasoning Puzzle with Detailed Solution - 4 Variables

Directions (Q. 1-5) Read the following information carefully and answer the questions which follow.

            Five friends Abdullah, Birbal, Chanakya, Durjan, and Eeshwar are working in 5 different departments M, N, O, P and Q and they earn different salaries i.e. 10,000, 15,000, 20,000, 25,000 and 30,000 and they all are of different ages i.e. 24, 26, 28, 30 and 32 years. These all information  are not necessarily in the same order.

Birbal works in department M and earns more than 20,000. Person who is 28 years old works in department Q. 32 years old person earns at least 20,000.

The person who is 26 years old earns 25,000. Abdullah earns 15,000, but does not work in department N or P.

Person who is 30 years old earns highest salary but does not work in department M and N. Eeshwar does not work in department P or Q, and his age is not 32. The salary of Durjan is less than 20,000.

Q1. Who works in department N?

                     a) Birbal                                  b)  Chanakya                            c) Durjan

                     d) Eeshwar                              e) Can’t be determined

Q2.  If the name of the person represents its salary then which of the following is true?

        a) Abdullah + Birbal = Chanakya

        b) Chanakya + Durjan = Eeshwar

        c) Durjan + Eeshwar = Birbal

        d) Abdullah + Durjan = Eeshwar

        e) None of these

Q3. Which of the following combination is definitely true?

       a) Birbal-30 years-M-30,000

       b) Durjan-24 years-N-10,000

       c) Abdullah-24 years-P-15,000

       d) Eeshwar-30 years-O-30,000

       e) None of these

Q4. The person whose age is 30 works in which department?

                   a) M                             b) N                             c) O

                   d) P                              e) None of these

Q5. Age and Salary of Chankaya is:

                   a) 32 years and Rs. 20,000

                   b) 24 years and Rs. 25,000

                   c) 30 years and Rs. 30,000

                   d) None of The Above

Solutions

Answer 1.     (Option E)

Answer 2.     (Option B)

Answer 3.     (Option D)

Answer 4.     (Option C)

Answer 5.     (Option A)

Reasoning Puzzle Practice Questions with Solutions set 3

Directions (Q. 1-5) Read the following passage carefully and answer the question given below it.

            Six friends Abhi, Deep, Myank, Prince, Rambo and Sumit married within a year in the months of February, April, July, September, November and December and in the cities of Ahmedabad, Bengaluru, Chennai, Delhi, Mumbai and Kolkata but not necessarily following the above order. The brides names were Geetu, Jasmeet, Harman, Bindia, Inpreet and Vanshika, once again not following any order. The following are some facts about their weddings.

(i) Myank’s wedding took place in Chennai, however he was not married to Geetu or Vanshika

(ii) Abhi’s wedding took place in Ahmedabad and Rambo’s in Delhi; however neither of them was married to Jasmeet or Bindia.

(iii) The wedding in Kolkata took place in February

(iv) Harman’s wedding took place in April, but not in Ahmedabad

(v) Geetu and Inpreet got married in February and November and in Chennai and Kolkata but not following the above order

(vi) Prince visited Bengaluru and Kolkata only after his marriage in December

(vii) Sumit was married to Jasmine to September

Q1.  Harman’s husband is

               a) Abhi                         b) Deep                           c) Rambo

               d) Prince                       e) Myank

Q2. Deep’s wedding took place in

              a) Bengaluru                 b) Mumbai                           c) Kolkata

              d) Delhi                         e) Chennai

Q3. In Mumbai, the wedding of one of the friends took place in the month of

             a) April                                    b) September               c) November

             d) December                            e) July

Q4. Sumit’s wedding was held in

           a) Bengaluru                 b) Chennai                   c) Kolkata

           d) Delhi                         e) Mumbai

Q5. Geetu was married to _____:
          a) Myank                      b) Deep                  
          c) Prince                       d) None of These

Solution

Answer 1.                   Option c)

Answer 2.                   Option c)

Answer 3.                   Option d)

Answer 4.                   Option a)

Answer 5.                   Option b)

Husband	Wife	Place	Month
Abhi	Vanshika	Ahmedabad	July
Deep	Geetu	Kolkata	February
Myank	Inpreet	Chennai	November
Prince	Bindia	Mumbai	December
Rambo	Harman	Delhi	April
Sumit	Jasmeet	Bengaluru	September