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DIGIT APTITUDE TEST
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Directions (6-8): These questions are based
on the following set of numbers.
386
752
961
573
839
(Canara Bank PO Exam. 15.03.2009)
6. If 1 is added to the middle digit of each
number and then the first and the second
digits are inter-changed, which of the
following will be the third digit of the
smallest number?
1) 6
2) 2
3) 1
4) 3
5) 9
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2. If' '1' is subtracted from the first digit in
each number and '1' is added to the second
digit in each number, then which of the
will be the third digit of the second highest
number?
1) 9
2) 8
3) 6
4) 4
5) 3
numbers is increased by 2 and then the
digits of each number are written in
reverse order, which number will be the
fourth if arranged in descending order?
(Union Bank of India PO Exam. 27.11.2005)
1) 236
2) 843
3) 566
4) 358
5) 478
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Directions (1 – 4 ): Following questions are
based on the five three-digit numbers given
below:
519
378 436
624 893
(Oriental Bank Of Commerce PO Exam.
21.12.2008)
1. If the positions of the first and the third
digits
within
each
number
are
interchanged, then which of the following
will be the second smallest number?
1) 519
2) 378
3) 436
4) 624
5) 893
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3. If the positions of the first and the second
digits
within
each
number
are
interchanged, then which of the following
will be the highest number?
1) 519
2) 378
3) 436
4) 624
5) 893
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4. Which of the following will be the middle
digit of the second highest number among
the following five numbers if the positions
of the first and the third digits in each
number are interchanged?
(Corporation Bank PO Exam. 09.07.2006)
432
851 719 643
287
1) 8
2) 3
3) 5
4) 1
45) 4
5. If the middle digit of each of the following
7. If in each number the first and the third
digits are interchanged, which number
will be the second largest?
1) 386
2) 752
3) 961
4) 573
5) 839
8. If in each number the second and the third
digits are interchanged, what will be the
sum of the first and third digits of the
largest number?
1) 12
2) 17
3) 15
4) 11
5) None of these
Directions (9 - 10): Following questions are
based on the five three-digit numbers given
below:
519
368
437
246
175
(UCO Bank PO Exam. 22.03.2009)
9. Which of the following is the sum of the
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16. Which of the following is the second digit
of the second lowest number?
1) 1
2) 7
3) 6
4) 8
5) 9
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Directions (11-14): Following questions are
based on the five three-digit numbers given
below:
832
719
654
967
481
(Corporation Bank PO Exam. 22.11.2009)
11. If the positions of the second and the third
digits
within
each
number
are
interchanged, which of the following will
be the sum of the first and the second
digits of the third highest number?
1) 16
2) 10
3) 9
4) 15
5) None of these
Directions (15 -17): Following questions are
based on the five three-digit numbers given
below.
813
479
564
385
792
(Bank Of India Banking Officer " Exam.
24.01.2010)
15. If the positions of the first and the second
digits
within
each
number
are
interchanged, which of the following will
be the lowest number?
1) 813
2) 479
3) 564
4) 385
5) 792
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10. Which of the following is the third digit of
the second highest number?
1) 9
2) 8
3) 7
4) 6
5) 5
of the lowest number?
1) 8
2) 11
3) 15
4) 12
5) None of these
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middle digits of the highest and the lowest
numbers?
1) 6
2) 9
3) 8
4) 5
5) None of these
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12. Which of the following is the sum of the
first and the third digits of the second
lowest number?
1) 16
2) 10
3) 18
4) 5
5) None of these
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13. If the positions of the first and the second
digits
within
each
number
are
interchanged, which of the following will
be the difference between the highest and
the second highest number?
1) 203
2) 133
3) 385
4) 182
5) 144
14. If the positions of the first and the third
digits
within
each
number
are
interchanged, which of the following will
be the sum of the second and third digits
17. Which of the following is the sum of the
first and the third digits of the second
highest number?
1) 11
2) 13
3) 9
4) 8
5) None of these
18. Which of the following is the Middle digit
of the third highest among the five threedigit numbers given below?
368
931
472
715
647
(Allahabad Bank PO Exam. 21.02.2010)
1) 6
2) 3
3) 7
4) 1
5) 4
Directions (19-21): Following questions are
based on the five three-digit numbers given
below:
528
739
846
492
375
(Canara Bank PO Exam. 09.02.2003)
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21. If the positions of the first and the third
digits of each number are interchanged,
which of the following will be the middle
digit of the third highest number?
1) 2
2) 3
3) 4
4) 9
5) 7
25. If the positions of the first and the third
digits in each of the numbers are
interchanged, which of the following will
be the second digit of the lowest number?
1) 1
2) 2
3) 4
4) 9
5) 3
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20. If the positions of the first and the second
digits of each number are interchanged,
which of the following will be the third
digit of the second lowest number?
1) 8
2) 9
3) 6
4) 2
5) 5
Directions (24 - 28): Following questions are
based on the five three-digit numbers given
below:
519
328
746
495
837
(Punjab & Sind Bank PO Exam.
16.05.2010)
24. If half of the second highest number is
subtracted from the third highest number,
then what will be the value?
1) 156
2) 146
3) 213
4) 314
5) None of these
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19. Which of the following represents the sum
of the first two digits of the highest
number?
1) 7
2) 10
3) 12
4) 13
5) None of these
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22. If the positions of the first and the second
digits
within
each
number
are
interchanged, which of the following will
be the second highest number?
394 632
783
576
895
(Punjab & Sind Bank PO Exam.
23.01.2011)
1) 632
2) 783
3) 576
4) 895
5) 394
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23. If 3 is subtracted from the middle digit of
the following numbers and then the
position of the digits are reversed, which
of the following will be the last digit of the
middle number after they are arranged in
descending order?
589 362
554
371
442
(SBI PO Exam. 26.11.2006)
1) 5
2) 4
3) 2
4) 1
5) 3
26. If in each number the third digit becomes
the first digit, the first digit becomes the
second digit and the second digit becomes
the third digit, which of the following will
be the first digit of the second highest
number?
1) 9
2) 6
3) 5
4) 7
5) 8
27. Which of the following represents the
difference between the first and the second
digits of the second highest number?
1) 4
2) 1
3) 3
4) 5
5) None of these
28. If 'l' is subtracted from the third digit of
each number and 'l' is added to the first
digit of each number, which of the
following will be the sum of the second
and third digits of the second lowest
number?
1) 13
2) 9
3) 8
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Directions (35 - 39): These questions are
based on the following set of numbers.
358
426
853
674
592
(Allahabad Bank Clerk Exam. 15.03.2009)
35. If '1' is subtracted from the middle digit of
each number and then the numbers are
arranged in descending order, what will be
the sum of the digits of the second newly
formed number?
1) 16
2) 15
3) 11
4) 12
5) None of these
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30. What will be the middle digit of the
second lowest number after the position of
only the first and the second digits within
each number are interchanged?
1) 5
2) 2
3) 7
4) 3
5) None of these
34. If in each number the positions of the first
and the second digits are interchanged and
then the numbers are arranged in
descending order, then which number will
be the smallest?
1) 386
2) 874
3) 697
4) 469
5) 731
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Directions (29 - 31): Study the following five
numbers and answer the questions given
below:
517 325 639
841 792
(RBI Grade-B Officer Exam. 2007)
29. What will be last digit of the third number
from top when they are arranged in
descending order after reversing the
position of the digits within each number?
1) 7
2) 3
3) 5
4) 2
5) None of these
then the numbers are arranged in
descending order, which number will be
the second?
1) 386
2) 874
3) 697
4) 469
5) 731
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5) None of these
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4) 6
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31. What will be the first digit of the second
highest number after the position of only
the second and the third digits within each
number are interchanged?
1) 7
2) 2
3) 8
4) 9
5) None of these
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Directions (32 - 34): These questions are
based on the following set of numbers :
386 874 697
469
731
(Allahabad Bank Clerk Exam. 31.08.2008)
32. If in each number, 1 is added to the first
digit and the positions of the second and
the third digits are interchanged, which
number will be the largest?
1) 386
2) 874
3) 697
4) 469
5) 731
33. If in each number the positions of the first
and the third digits are interchanged and
36. If in each number the first and the third
digits are interchanged, then which
number will be the largest?
1) 358
2) 426
3) 853
4) 674
5) 592
37. If the first and the second digits in each
number are interchanged, then which
number will be the smallest?
1) 358
2) 426
3) 853
4) 674
5) 592
38. If all the numbers are arranged in
descending order, what will be the
difference between the third digit of
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smallest number and the first digit of the
largest number?
1) 4
2) 12
3) 11
4) 5
5) None of these
39. If in each number first digit is replaced by
the third digit, second digit is replaced by
the first digit and third digit is replaced by
the second digit then which number will
be the smallest?
1) 358
2) 426
3) 853
4) 674
5) 592
44. What is the difference between the third
digit of the smallest and the largest
numbers?
1) 8
2) 6
3) 5
4) 4
5) None of these
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45. If in each number the first and second
digits are interchanged and then the
numbers are arranged in descending order;
which number will be the first?
1) 385
2) 496
3) 239
4) 891
5) 752
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40. In the set of three digit numbers given
below, first two digits of each number are
interchanged. Which one among them will
be in the middle if they are arranged in
ascending order after the change?
230
422
328
516
138
(Dena Bank Clerk Exam. 09.09.2007)
1) 230
2) 328
3) 516
4) 138
5) None of these
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second number and second digit of third
number?
1) 1
2) 2
3) 4
4) 5
5) None of these
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Directions (41 - 45): These questions are
based on the following set of numbers.
385
496
239
891
752
(Canara Bank Clerk Exam. 29.03.2009)
41. If in each number the positions of first and
the third digits are interchanged and then
the numbers are arranged in descending
order, then which number will be second?
1) 385
2) 496
3) 239
4) 891
5) 752
42. If all the numbers are arranged in
descending order, what is the second digit
of the fourth number?
1) 9
2) 3
3) 5
4) 8
5) None of these
43. What is the sum of the middle digit of the
Directions (46 - 50): The questions are based
on following set of numbers.
319 869 742 593 268
(Central Bank of India Clerk Exam.
24.05.2009)
46. If in each number the first and the third
digits are interchanged, then which
number will be the highest?
1) 319
2) 869
3) 742
4) 593
5) 268
47. If one is subtracted from the first and third
digits of each of the numbers, what will be
the difference between the first digit of the
highest number and the first digit of the
lowest number?
1) 2
2) 3
3) 4
4) 5
5) None of these
48. In each number if all the digits are
arranged in ascending order, which
number will be second lowest?
1) 319
2) 869
3) 742
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719 ⇒ 917, 643 ⇒ 346, 287 ⇒ 782
ANSWERS
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1. (4)
519 ⇒ 915; 378 ⇒ 873;
436 ⇒ 634; 624 ⇒ 426;
893 ⇒ 398;
Second smallest number = 426 ⇒ 624
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2. (4)
519 ⇒ 429; 378 ⇒ 288;
436 ⇒ 346; 624 ⇒ 534;
893 ⇒ 803;
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Middle digit
5. (1)
236 < 652
843 > 368
566 < 685
358 < 873
478 < 894
Descending order
894 > 873 > 685 > 652 > 368
↓
4th
652 > 236
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50. If all the numbers are arranged in
descending order, what will be the
difference between the second digit of
third number and third digit of second
number?
1) 5
2) 9
3) 6
4) 7
5) None of these
917 > 7 8 2 > 346 > 234 > 158
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49. If in each number first digit is replaced by
the third digit, second digit is replaced by
the first digit and third digit is replaced by
the second digit, then which number will
be the second highest?
1) 319
2) 869
3) 742
4) 593
5) 268
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5) 268
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4) 593
6. (5)
386 ⇒ 936; 752 ⇒ 672
961 ⇒ 791; 573 ⇒ 853
839 ⇒ 489
Smallest number ⇒ 489
7. (1)
386 ⇒ 683; 752 ⇒ 257
961 ⇒ 169; 573 ⇒ 375
839 ⇒ 938
Second largest number
⇒ 683 ⇒ 386
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Second highest number = 534 ⇒ 62 4
3. (5)
519 ⇒ 159; 378 ⇒ 738;
436 ⇒ 346; 624 ⇒ 264;
893 ⇒ 983;
Highest number = 983 ⇒ 893
4. (1)
432 ⇒ 234, 851 ⇒ 158,
8. (3)
386 ⇒ 368; 752 ⇒ 725
961 ⇒ 916; 573 ⇒ 537
839 ⇒ 893
Largest number
⇒ 916 ⇒ 9 + 6 = 15
9. (3)
Highest number ⇒ 519
Lowest number ⇒ 175
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Required sum ⇒ 1 + 7 = 8
⇒ 792
7+2=9
10. (3)
Second highest number ⇒ 437
18. (5)
Third highest number
⇒647
11. (1)
832 ⇒ 823; 719 ⇒ 791;
654 ⇒ 645; 967 ⇒ 976;
481 ⇒ 418
Third highest number ⇒ 791
7 + 9 = 16
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19. (3)
Highest number ⇒ 846
Required sum ⇒ 8 + 4 = 12
20. (2)
528 ⇒ 258; 739 ⇒ 379;
846 ⇒ 486; 492 ⇒ 942;
375 ⇒ 735;
Second lowest number ⇒ 379
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14. (4)
832 ⇒ 238; 719 ⇒ 917;
654 ⇒ 456; 967 ⇒ 769;
481 ⇒ 184
Lowest number ⇒ 184
8 + 4 = 12
21. (3)
528 ⇒ 825; 739 ⇒ 937;
846 ⇒ 648; 492 ⇒ 294;
375 ⇒ 573;
Third highest number ⇒ 648
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13. (5)
832 ⇒ 382; 719 ⇒ 179;
654 ⇒ 564; 967 ⇒ 697;
481 ⇒ 841
841 – 697 = 144
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12. (2)
Second lowest number ⇒ 654
6 + 4 = 10
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15. (1)
813 ⇒ 183; 479 ⇒ 749;
564 ⇒ 654; 385 ⇒ 835;
792 ⇒ 972
Lowest Number ⇒ 183 ⇒ 813
16. (2)
Second Lowest Number
⇒4 7 9
22. (5)
394 ⇒ 934; 632 ⇒ 362;
783 ⇒ 873; 576 ⇒ 756;
895 ⇒ 985
Second Highest Number
⇒ 934 ⇒ 394
23. (5)
According to question,
589 ⇒ 559 ⇒ 955
362 ⇒ 332 ⇒ 233
554 ⇒ 524 ⇒ 425
371 ⇒ 341 ⇒ 143
442 ⇒ 412 ⇒ 214
Descending order:
955 > 425 > 233 > 214 :143
↓
Middle Number
17. (3)
Second Highset Number
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792 ⇒ 297
Descending order:
23 3
↓
Last digit
936 > 715 > 523 > 297 > 148
52 3 → Last digit
24. (2)
Second highest number
⇒ 746;
30. (4)
According to question
517 ⇒ 157
325 ⇒ 235
639 ⇒ 369
841 ⇒ 481
792 ⇒ 972
746
= 373
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Third highest number ⇒ 519
Required difference
⇒ 519 – 373 = 146
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25. (4)
519 ⇒ 915; 328 ⇒ 823;
746 ⇒ 647; 495 ⇒ 594;
837 ⇒ 738
Lowest number ⇒ 594
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157 < 235 < 369 < 481 < 972
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26. (5)
519 ⇒ 951; 328 ⇒ 832;
746 ⇒ 674; 495 ⇒ 549;
837 ⇒ 783
Second highest number ⇒ 832
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27. (3)
Second highest number ⇒ 746
Required difference ⇒ 7 – 4 = 3
31. (1)
According to question
517 ⇒ 571
325 ⇒ 352
639 ⇒ 693
841 ⇒ 814
792 ⇒ 729
814 > 729 > 693 > 571 > 352
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First digit
32. (2)
386 ⇒ 468; 874 ⇒ 947;
697 ⇒ 779; 469 ⇒ 596;
731 ⇒ 813
29. (2)
517 ⇒ 715
325 ⇒ 523
639 ⇒ 936
841 ⇒ 148
33. (3)
386 ⇒ 683; 874 ⇒ 478;
697 ⇒ 796; 469 ⇒ 964;
731 ⇒ 137
964 > 769 > 683 > 478 > 137
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28. (1)
519 ⇒ 618; 328 ⇒ 427;
746 ⇒ 845; 495 ⇒ 594;
837 ⇒ 936
Second lowest number ⇒ 594
Required sum = 9 + 4 = 13
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34. (5)
386 ⇒ 836; 874 ⇒ 784;
697 ⇒ 967; 469 ⇒ 649;
731 ⇒ 371
967 > 836 > 784 > 649 > 374
41. (2)
385 ⇒ 583; 496 ⇒ 694;
239 ⇒ 932; 891 ⇒ 198;
752 ⇒ 257
932 > 694 > 583
694 ⇒ 496
35. (1)
358 ⇒ 348; 426 ⇒ 416
853 ⇒ 843; 674 ⇒ 664
592 ⇒ 582
843 > 664 > 582
∴ 6 + 6 + 4 = 16
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38. (4)
853 > 674 > 592 > 426 > 358
9–4=5
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44. (1)
9–1=8
45. (4)
385 ⇒ 835; 496 ⇒ 946;
239 ⇒ 329; 891 ⇒ 981;
752 ⇒ 572
981 > 946 > 835
981 ⇒ 891
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37. (2)
358 ⇒ 538; 426 ⇒ 246
853 ⇒ 583; 674 ⇒ 764
592 ⇒ 952
Smallest number = 246 ⇒ 426
43. (3)
3 + 8 = 11
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36. (1)
358 ⇒ 853; 426 ⇒ 624
853 ⇒ 358; 674 ⇒ 476
592 ⇒ 295
Largest number = 853 ⇒ 358
42. (4)
891 > 752 > 496 > 385
46. (2)
319 ⇒ 913; 869 ⇒ 968;
742 ⇒ 247; 593 ⇒ 395;
268 ⇒ 862
Highest number ⇒ 968 ⇒ 869
47. (5)
319 ⇒ 218; 869 ⇒ 768;
742 ⇒ 641; 593 ⇒ 492;
268 ⇒ 167
7–1=6
40. (5)
230 ⇒ 320; 422 ⇒ 242;
328 ⇒ 238; 516 ⇒ 156;
138 ⇒ 318
Ascending order of numbers
156 < 238 < 242 < 318 < 320
48. (3)
319 ⇒ 139; 869 ⇒ 689;
742 ⇒ 247; 593 ⇒ 359;
268 ⇒ 268
Second Lowest Number ⇒ 247 ⇒ 742
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39. (5)
358 ⇒ 835; 426 ⇒ 642;
853 ⇒ 385; 674 ⇒ 467;
592 ⇒ 259
Smallest number = 259 ⇒ 592
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49. (1)
319 ⇒ 931; 869 ⇒ 986;
742 ⇒ 247; 593 ⇒ 359;
268 ⇒ 826;
Second Highest Number
⇒ 931 ⇒ 319
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50. (4)
869 > 742 > 593 > 319 > 268
9–2=7
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