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Arithmetic Aptitude :: Numbers

  1. If 1400 x x = 1050. Then, x = ?

  2. A.

    \(\frac { 1} {4} \)

     

    B.

    \(\frac { 3} {5} \)

    C.

    \(\frac { 2 } { 3 }\)

     

     

    D.

    \( \frac {3 } {4}\)

    E.

    None of these


  3. (12 + 22 + 32 + ... + 102) = ?

  4. A.

    330

    B.

    345

    C.

    365

    D.

    385


  5. The difference of the squares of two consecutive even integers is divisible by which of the following integers ?

  6. A.

    3

    B.

    4

    C.

    6

    D.

    7


  7. Which one of the following is a prime number ?

  8. A.

    119

    B.

    187

    C.

    247

    D.

    551

    E.

    None of these


  9. The sum all even natural numbers between 1 and 31 is:

  10. A.

    16

    B.

    128

    C.

    240

    D.

    512


  11. The difference between the place value and the face value of 6 in the numeral 856973 is

  12. A.

    973

    B.

    6973

    C.

    5994

    D.

    None of these


  13. If a and b are odd numbers, then which of the following is even ?

  14. A.

    a + b

    B.

    a + b + 1

    C.

    ab

    D.

    ab + 2

    E.

    None of these


  15. Which one of the following numbers is completely divisible by 99?

  16. A.

    3572404

    B.

    135792

    C.

    913464

    D.

    114345

    E.

    None of these


  17. The sum of how many terms of the series 6 + 12 + 18 + 24 + ... is 1800 ?

  18. A.

    16

    B.

    24

    C.

    20

    D.

    18

    E.

    22


  19. (51+ 52 + 53 + ... + 100) = ?

  20. A.

    2525

    B.

    2975

    C.

    3225

    D.

    3775