Number System Questions Practice Question and Answer

Q:

The real number to be added to 13851 to get a number that is divisible by 87 is :

1195 0

  • 1
    18
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    54
    Correct
    Wrong
  • 4
    69
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "69"

Q:

The product of two numbers is 24 times the difference of these two numbers. If the sum of these two numbers is 14. Find the larger number?

1194 0

  • 1
    9
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. " 8"

Q:

64329 is divided by a certain number. While dividing, the numbers, 175, 114 and 213 appear as three successive remainders. The divisor is?

1192 0

  • 1
    184
    Correct
    Wrong
  • 2
    224
    Correct
    Wrong
  • 3
    234
    Correct
    Wrong
  • 4
    296
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "234 "
Explanation :

Number at (i) = 643 – 175 = 468

Number at (ii) = 1752 – 114 = 1638

Number at (iii) = 1149 – 213 = 936

Clearly, 468, 1638 and 936 are multiples of 234 and 234 > 213.

Divisor = 234

Q:

The east positive integer that should be subtracted from 3011 x 3012 so that the difference is a perfect square is-

1190 0

  • 1
    3009
    Correct
    Wrong
  • 2
    3010
    Correct
    Wrong
  • 3
    3011
    Correct
    Wrong
  • 4
    3012
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "3011"
Explanation :

We know that 3011 x 3012

= 3011 (3011 + 1)

= (3011)+ 3011

We know    

Required least number = 3011

Q:

The largest natural number which exactly divides the product of any four consecutive natural numbers is

1185 0

  • 1
    24
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "24 "

Q:

When (6767 +67) is divided by 68, the remainder is-

1183 0

  • 1
    13
    Correct
    Wrong
  • 2
    63
    Correct
    Wrong
  • 3
    66
    Correct
    Wrong
  • 4
    67
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "66"
Explanation :

(6767+ 67) = 67(6766 + 166)

As 66 is an even number

We know   6766 is an even number

We know   (6766 + 1) is perfectly divisible by (67 + 1)

i.e. 68

We know   The remainder = 66

(6767+ 67) = 67(6766 + 166)

Q:

If the 5-digit number 535ab is divisible by 3, 7 and 11, then what is the value of (a2 - b2 + ab)?

1179 0

  • 1
    77
    Correct
    Wrong
  • 2
    89
    Correct
    Wrong
  • 3
    95
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "95"

Q:

Direction : What value should come in place question mark(?) in the following questions?

4 × 5– 32 × 7 + 62=?+24

1175 0

  • 1
    $$ {7^2}$$
    Correct
    Wrong
  • 2
    $$ {8^2}$$
    Correct
    Wrong
  • 3
    $$ {9^2}$$
    Correct
    Wrong
  • 4
    $$ {4^2}$$
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "$$ {7^2}$$"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully