Number System


  1. When a number is divided by 12 then dividend becomes 1/4 of the other number. by how much per cent is first number greater than the second number ?









  1. View Hint View Answer Discuss in Forum

    Here neither the remainder nor the dividend nor the second number is given. So, can't be determined.

    Correct Option: D

    Here neither the remainder nor the dividend nor the second number is given. So, can't be determined.


  1. If the sum of one-half, one-third and one-fourth of a number exceeds the number itself by 4, what could be the number ?









  1. View Hint View Answer Discuss in Forum

    Let the number be N
    ∴ (1/2 + 1/3 + 1/4)N = {(6 +4 +3) x N } / 12
    = 13N / 12

    According to the question,
    13N/12 - N = 4
    ∴ N = 48

    Correct Option: D

    Let the number be N
    ∴ (1/2 + 1/3 + 1/4)N = {(6 +4 +3) x N } / 12
    = 13N / 12

    According to the question,
    13N/12 - N = 4
    ∴ N = 48



  1. 1/5 of a number is equal to 5/8 of the second number. If 35 is added to the first number then it becomes 4 times of second number. What is the second number ?









  1. View Hint View Answer Discuss in Forum

    Let first and second numbers are p & q.
    From question
    p/5 = 5q/8 .....(i)
    p + 35 = 4q .....(ii)

    Correct Option: C

    Let first and second numbers are p & q.
    p/5 = 5q/8
    ∴ p/q = 25/8 ...(i)
    p + 35 = 4q
    or 25q/8 + 35= 4q
    ∴ q = 40.


  1. 469157 x 9999 = ?









  1. View Hint View Answer Discuss in Forum

    461957 x 9999 = 469157 x (10000-1)

    Correct Option: C

    469157 x 9999 = 469157 x (10000-1)
    = 4691570000 - 469157
    = 4691100843.



  1. 2?63 / 11 =233









  1. View Hint View Answer Discuss in Forum

    Let N / 11 = 233
    Then, N = 233 x 11 = 2563
    ∴ Missing digit is 5.

    Correct Option: D

    Let N / 11 = 233
    Then, N = 233 x 11 = 2563
    ∴ Missing digit is 5.