4. Classification; Quantitative Aptitude; Civil Service Examination, RPSC | RAS RPSC Prelims Preparation - Notes, Study Material & Tests - RPSC RAS (Rajasthan) PDF Download

Classification involves putting things into a class or group according to particular characteristics so it’s easier to make sense of them, whether you’re organizing your shoes, your stock portfolio, or a group of invertebrates.  From all competitive examination classification is one of the most important topics, this pattern come with lot of questions minimum they asking the 4 to 5 question from the classification topic. In the SSC CGL or SSC constable GD examination having the same topics from the reasoning section but the standard of the topic will be different, so most of the candidates preference for this topic to get the best score in the written examination.

Directions: Find the odd one out

1.  A. Square               B. Circle                      C. Rectangle               D. Triangle
 

2.  A. Cotton               B. Terene                      C. Silk                          D. Wool
 

3.  A. Light                  B. Wave                        C. Heat                        D. Sound
 

4.  A. 81 : 243            B. 16 :64                       C. 64 : 192                  D. 25 : 75

5.  A. 64 : 8                 B. 80 : 9                        C. 7 : 49                      D. 36 : 6

6.  A. 26 : 62               B. 36 : 63                     C. 46 : 64                   D. 56 : 18

7.  A. ABZY                 B. BCYX                        C. CDVW                     D. DEVU

8.  A. ACE                    B. FHJ                           C. KLM                        D. SUW

9. Find the wrong number in the series

    441, 484, 529, 566, 625

     A. 484                    B. 529                         C. 625                         D. 566

10. Find the wrong number in the series

    232, 343, 454, 564, 676

    A. 676                     B. 454                         C. 343                         D. 564

SOLUTION

1. B. Except circle, all others are geometrical figures consisting straight lines.

2. B. Except terene, all others are natural fibres.

3. B. Except wave, all others are different form of energy.

4. B.    81*3=243

            64*3=192

            25*3=75

But     16*4=64

5. D.   Except D, in each pair one number is square root of the other.

6. D.  Except D, in each pair the position of digits has been interchanged.

7.  C.  A+1=B   &   Z-1=Y

            B+1=C   &   Y-1=X

            D+1=E   &   V-1=U

  But   C+1=D   &   V+1=W

8.  C.   A+2=C    &   C+2=E

            F+2=H     &   H+2=J

But      K+1=L     &   L+1=M

9.  D.  21^2=441

            22^2=484

            23^2=529

            25^2=625

But   (23.79)^2=566

10.  D.  232+111=343

              343+111=454

              454+111=565 (but given 564