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Arithmetic Aptitude :: Numbers

  1. In a division sum, the remainder is 0. As student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient ?

  2. A.

    0

    B.

    12

    C.

    13

    D.

    20


  3. 2 + 22 + 23 + ... + 29 = ?

  4. A.

    2044

    B.

    1022

    C.

    1056

    D.

    None of these


  5. The sum of even numbers between 1 and 31 is:

  6. A.

    6

    B.

    28

    C.

    240

    D.

    512


  7. If the number 91876 * 2 is completely divisible by 8, then the smallest whole number in place of * will be:

  8. A.

    1

    B.

    2

    C.

    3

    D.

    4

    E.

    None of these


  9. 2056 x 987 = ?

  10. A.

    1936372

    B.

    2029272

    C.

    1896172

    D.

    1926172

    E.

    None of these


  11. On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:

  12. A.

    47619

    B.

    47719

    C.

    48619

    D.

    47649


  13. If 60% of \(\frac { 3 } { 5 }\)     of a number is 36, then the number is:
     

  14. A.

    80

    B.

    100

    C.

    75

    D.

    90



  15.     
    If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x + y = ?

  16. A.

    2 or 6

    B.

    4

    C.

    4 or 8

    D.

    8

    E.

    None of these


  17. The difference of the squares of two consecutive odd integers is divisible by which of the following integers ?

  18. A.

    3

    B.

    6

    C.

    7

    D.

    8


  19. What is the unit digit in (4137)754?
     

  20. A.

    1

    B.

    3

    C.

    7

    D.

    9