NUMBER SERIES

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NUMBER SERIES


Directions (Q. 1-10) : In each of these questions a number series is given. Only one number is wrong in each series. You have to find out the wrong number. 


1. 10, 15, 24, 35, 54, 75, 100
(A) 35 (B) 75 (C) 24 (D) 15 (E) 54

2. 1, 3, 4, 7, 11, 18, 27, 47
(A) 4 (B) 11 (C) 18 (D) 7 (E) 27

3. 3, 2, 3, 6, 12, 37.5, 115.5
(A) 37.5 (B) 3 (C) 6 (D) 2 (E) 12

4. 2, 8, 32, 148, 765, 4626, 32431
(A) 765 (B) 148 (C) 8 (D) 32 (E) 4626

5. 2, 3, 11, 38, 102, 229, 443
(A) 11 (B) 229 (C) 102 (D) 38 (E) 3

6. 13, 25, 40, 57, 79, 103, 130
(A) 25 (B) 40 (C) 57 (D) 79 (E) None of these

7. 850, 600, 550, 500, 475, 462.5, 456.25
(A) 600 (B) 550 (C) 500 (D) 462.5 (E) None of these

8. 2, 10, 18, 54, 162, 486, 1458
(A) 18 (B) 54 (C) 162 (D) 10 (E) None of these

 9. 8, 12, 24, 46, 72, 108, 152
(A) 12 (B) 24 (C) 46 (D) 72 (E) None of these

10. 142, 119, 100, 83, 65, 59, 52
(A) 65 (B) 100 (C) 59 (D) 119 (E) None of these Directions

(Q. 11-50) : What should come in place of the question mark (?) in the following number series?

11. 1548, 516, 129, 43, ?
(A) 11 (B) 10.75 (C) 9.5 (D) 12 (E) None of these

12. 949, 189.8, ?, 22.776, 11.388, 6.8328
(A) 48.24 (B) 53.86 (C) 74.26 (D) 56.94 (E) None of these

13. 121, 144, 190, 259, ?, 466
(A) 351 (B) 349 (C) 374 (D) 328 (E) None of these

14. 14, 43.5, 264, ?, 76188
(A) 3168 (B) 3176 (C) 1587 (D) 1590 (E) None of these

15. 41, 164, 2624, ?, 6045696
(A) 104244 (B) 94644 (C) 94464 (D) 102444 (E) None of these

16. 2, 3, 8, 27, 112, ?
(A) 156 (B) 224 (C) 375 (D) 480 (E) 565

17. 4, 4, 6, 12, 30, ?, 315
(A) 60 (B) 75 (C) 90 (D) 115 (E) 120

18. 3, 4, 10, 33 , ?, 645, 4116
(A) 84 (B) 112 (C) 136 (D) 156 (E) 224

19. 4, 5, 8, 28, 104, ? (Number Series )
(A) 208 (B) 312 (C) 424 (D) 536 (E) 576

20. 12, 15, 25, 42, 66, 97, ? 
(A) 135 (B) 144 (C) 156 (D) 167 (E) 182

21. 3, 4, 8, 17, 33, 58, ?
(A) 80 (B) 94 (C) 115 (D) 124 (E) 144

22. 24, 28, 19, 35, 10, ?
(A) 45 (B) 44 (C) 46 (D) 42 (E) 47

23. 1, 2, 10, 37, 101 , ?
(A) 175 (B) 198 (C) 226 (D) 275 (E) 324

 24 . 16, 20, 29, 45, 70, 106, ?
(A) 155 (B) 172 (C) 184 (D) 196 (E) None of these

25. 5, 10, 25, 80, 325, ?
(A) 1540 (B) 1630 (C) 1850 (D) 2020 (E) None of these

26. 2, 12, ?, 80, 150, 252, 392
(A) 27 (B) 36 (C) 45 (D) 60 (E) None of these

27. 18, 40, 126, ?, 2570, 15432
(A) 484 (B) 512 (C) 524 (D) 496 (E) 584

28. 2, 3, 13, 24, 26, 43, ?, 60
(A) 39 (B) 41 (C) 45 (D) 49 (E) 52

29. 6, 55, 91, 116, ?, 141
(A) 124 (B) 128 (C) 132 (D) 136 (E) 138

30. 12, 39, 103, 228, 444, ?
(A) 686 (B) 727 (C) 787 (D) 824 (E) None of these

 31. 513, 495, ?, 462, 447, 433
(A) 460 (B) 491 (C) 488 (D) 478 (E) None of these

32. 7, 35, 210, ?, 6300, 31500
(A) 1040 (B) 1060 (C) 1080 (D) 1030 (E) None of these

 33. 5, 10, 25, 70, 205, ?
(A) 650 (B) 670 (C) 550 (D) 610 (E) None of these

34. 7, 11, 19, ?, 67, 131
(A) 35 (B) 23 (C) 46 (D) 51 (E) None of these

35. ?, 7800, 1560, 390, 130, 65
(A) 47120 (B) 49900 (C) 46800 (D) 48350 (E) None of these

36. 17, 52, 158, 477, ?, 4310
(A) 1433 (B) 1432 (C) 1435 (D) 1434 (E) None of these

37. 3, 22, ?, 673, 2696, 8093
(A) 133 (B) 155 (C) 156 (D) 134 (E) None of these

38. 6, 13, 38, ?, 532, 2675
(A) 129 (B) 123 (C) 172 (D) 164 (E) None of these (Number Series)

39. 286, 142, ?, 34, 16, 7
(A) 66 (B) 72 (C) 64 (D) 74 (E) None of these

40. 17, 9, ?, 16.5 , 35, 90
(A) 5 (B) 15 (C) 10 (D) 20 (E) None of these

41. 121 , 144, 190, 259, ?, 466
(A) 351 (B) 349 (C) 374 (D) 328 (E) None of these

42. 10 , 15 , 25 , 42 , 68 , ?
(A) 105 (B) 110 (C) 99 (D) 88 (E) 97

43. 1, 1, 2, 4.5, ? , 30
(A) 10 (B) 9 (C) 11 (D) 12 (E) 7

44. 1, 17, 81, 225, 481, ?
(A) 525 (B) 841 (C) 881 (D) 729 (E) None of these

45. 2096, 1572, 1179, 884.25, ?
(A) 673.2135 (B) 663.1875 (C) 573.2915 (D) 660.25 (E) None of these

46. 6, 26, 96, 276, 650, 1326, ?
(A) 2416 (B) 2426 (C) 2436 (D) 2446 (E) 2456

47. 1521, 1369, 1225, 1089, 961, 841, ?
(A) 612 (B) 668 (C) 692 (D) 729 (E) 754

48. 1745, 2778, 4147, 5900, 8085, 10750, ?
(A) 13943 (B) 13945 (C) 13948 (D) 13951 (E) 13954

49. 4, 7, 20, 79, 394, ?
(A) 2468 (B) 2416 (C) 2564 (D) 2359 (E) 2363

50. 940, 819, ?, 689, 664, 655
(A) 728 (B) 738 (C) 733 (D) 748 (E) 729



ANSWER KEY 1(A) 2(E) 3(E) 4(D) 5(B) 6(C) 7(A) 8(D) 9(C) 10(A) 11(B) 12(D) 13(A) 14(E) 15(C) 16(E) 17(C) 18(C) 19(D) 20(A) 21(B) 22(C) 23(C) 24(A) 25(B) 26(B) 27(B) 28(B) 29(C) 30(C) 31(D) 32(E) 33(D) 34(A) 35(C) 36(C) 37(D) 38(A) 39(E) 40(C) 41(A) 42(A) 43(C) 44(C) 45(B) 46(C) 47(D) 48(A) 49(E) 50(C)







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