NUMER SERIES 4:

 NUMBER SERIES 4:

1. 3,14,58,234,938,?
   1 : 4152
   2 : 4110
   3 : 3754
   4 : 4154
   5 : 4624
   
   
   Answer- 3 (3754)
   Explanation- x4+2
   
   
   
   
   
2. 3,25,255,2545,25455, ?
   1 : 254550
   2 : 254555
   3 : 254545
   4 : 254555
   5 : 254556
   
   
   Answer-3 (254545)
   Explanation-
   25=(3×10)-5
   255=(25×10)+5
   2545=(255×10)-5
   25455=(2545×10)+5
   ?=(2545×10)-5 = 254545
   
   
   
   
   
3. 4725,1050,300,120,80,?
   1 : 40
   2 : 160
   3 : 120
   4 : 110
   5 : 60
   
   
   Answer-2 (160)
   Explanation- 4725 / 4.5=1050
   1050/3.5=300
   300/2.5=120
   120/1.5=80
   80/0.5=160
   
   
   
   
   
4. 24,48,144,576,2880,?
   1 : 17280
   2 : 16640
   3 : 14400
   4 : 20160
   5 : 14240
   
   
   Answer- 1 (17280)
   Explanation- 24 x 2=48
   48×3=144
   144×4=576
   576×5=2880
   
   
   
   
   
5. 363,795,1227,1659,2091, ?
   1 : 2423
   2 : 2613
   3 : 2813
   4 : 2513
   5 : 2523
   
   
   Answer- 5 (2523)
   Explanation- +432 in every step
   
   
   
   
   
6. 5, 5, 15, 75, 525, 4725, _____.
   1 : 51795
   2 : 50135
   3 : 51025
   4 : 50175
   5 : 51975
   
   
   Answer- 5(51975)
   Explanation- multiply by consecutive odd numbers
   5×1=5
   5×3=15
   15×5=75
   75×9=4725
   4725×11=51975
   
   
   
   
7. 5, 13, 29, 61, 125, 253, _____
   1 : 512
   2 : 521
   3 : 509
   4 : 552
   5 : None of these
   
   
   Answer-3(509)
   Explanation-
   5 x2 +3 =13
   13×2 +3=29
   29×2+3=61 and so on..
   
   
   
   
   
8. 16, 32, 35, 140, 145, 870, 877, _____
   1 : 7016
   2 : 885
   3 : 5020
   4 : 6018
   5 : None of these
   
   
   Answer- 1(7016)
   Explanation-
   16×2 =32
   32+3=35
   35×4=140
   140+5=145
   145×6=870
   870+7=877
   877×8=7016
   
   
   
   
   
9. 5, 10, 35, 160, 785, _____.
   1 : 2010
   2 : 3910
   3 : 2525
   4 : 2860
   5 : None of these
   
   
   Answer- 2 (3910)
   Explanation-
   add 5^1,5^2,5^3,5^4,5^5 and so on in each step.
   
   
   
   
10. 196, 200, 209, 234, 283, 404, 573, _____
    1 : 872
    2 : 840
    3 : 884
    4 : 878
    5 : 862
    
    
    Answer-5 (862)
    Explanation- add square of prime no. in each step
    4,9,25,49,121,so on