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Must do Series for SBI PO/BoB PGDBF/IBPS RRBs(July 8, 2018)

2 months ago 0 comments

Dear Aspirants,
Numerical Ability or Quantitative Aptitude Section is very important to get the best score in Banking and other competitive exams. Now a day, the questions asked in this section are calculative and time-consuming. Once dealt with proper strategy, speed, and accuracy, this section will definitely award you the maximum marks in the examination. Here is another set of Questions to improve your speed and practice. Make most of it.

Directions (Q. 1-13): Find out the number in place of question mark (?) in the following number series.

1.    2      5     23     119     659     ?

        1) 982       2) 3275     3) 4079     4) 5148     5) 3895

2.    8      9     29     148     1040     ?

        1) 8967                  2) 7342                  3) 9810

        4) 7598                  5) 9365

3.    16      34     66     134     266     ?

        1) 589                    2) 534                    3) 634

        4) 530                    5) 536

4.    6         3     4.5     11.25     39.375     ?

        1) 114.5375          2) 110.2075          3) 121.1875

        4) 117.2530          5) 177.1875

5.    64        77     66     73     68     ?

         1) 73      2) 71      3) 80      4) 65      5) 72

6.     13         11     19     53     207     ?     6167

        1) 1029                  2) 1129                  3) 729

        4) 1219                  5) None of these

7.    2197        3375     4913     6859     ?     12167

        1) 9361                  2) 10648                3) 9216

        4) 9261                  5) None of these

8.     27        32     59     91     ?     241     391

        1) 110       2) 130       3) 145       4) 160       5) 150

9.     6     8     10     13     16     ?     24

        1) 19       2) 18       3) 21       4) 20       5) None of these

10.     15      16     19     18     ?     20     27     22

           1) 23      2) 20      3) 21      4) 22      5) None of these

11.     45       56.45     78.45     ?     156.5     212.25

           1) 110.9    2) 112.9    3) 90         4) 111.9    5) 115.9

12.     222        478     606     670     ?     718

          1) 705    2) 702    3) 729    4) 694    5) None of these

13.     56        73     107     124     158     ?     209

          1) 165    2) 175    3) 185    4) 171    5) None of these

 

Answers:

  1. 3; The series is ×2 + 13, ×3 + 23, ×4 + 33, ×5 + 43, ×6 + 53, …
  2. 5; The series is ×1 + 1, ×3 + 2, ×5 + 3, ×7 + 4, ×9 + 5, …
  3. 2; The series is ×2 + 2, ×2 – 2 … (repeated alternately)
  4. 5; The series is ×0.5, ×1.5, ×2.5, ×3.5, ×4.5, …
  5. 2; The series is +13, –11, +7, –5, +3,   Note: Consecutive prime numbers subtracted and added alternately.
  6. 1; The series is: × 1 – 2, × 2 – 3, × 3 – 4, × 4 – 5, ….
  7. 4; The series is: (13)3, (15)3, (17)3, (19)3, …
  8. 5; The series is:  27 + 32 = 59; 32 + 59 = 91; 59 + 91 = 150;  91 + 150 = 241; 150 + 241 = 391
  9. 4; The series is: +2, +2, +3, +3, +4, +4, …
  10. 1; The series is a combination of two series: Series I: 15 + 4 = 19; 19 + 4 = 23; 23 + 4 = 27     Series II: 16 + 2 = 18; 18 + 2 = 20; 20 + 2 = 22
  11. 4; The series is: + 11.15, + 22.3, + 33.45, + 44.6, …Hence there should be (78.45 + 33.45 =) 111.9
  12. 2; The series is: +256, +128, +64, +32, +16, …
  13. 2; The series is: +17, +34, +17, +34 (repeats)

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