Number System Questions Practice Question and Answer

Q:

Select the set in which the numbers are related in the same way as the numbers of the following set.
 (12, 30, 204)

976 0

  • 1
    (9, 12, 225)
    Correct
    Wrong
  • 2
    (11, 15, 236)
    Correct
    Wrong
  • 3
    (4, 12, 28)
    Correct
    Wrong
  • 4
    (15, 20, 265)
    Correct
    Wrong
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Answer : 4. "(15, 20, 265)"

Q:

Which of the following statements is a false statement?

(A) CRT The monitor is the thinnest monitor.

(B) Dot matrix is the fastest computer.

(C) CAG memory is slower than the main memory.

(D) Bar code reader is an input device.

974 0

  • 1
    a and b
    Correct
    Wrong
  • 2
    a, b and c
    Correct
    Wrong
  • 3
    c and d
    Correct
    Wrong
  • 4
    a and d
    Correct
    Wrong
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Answer : 2. "a, b and c"
Explanation :

All statements are true.

- CRT The monitor is the thinnest monitor.

- Dot matrix is the fastest computer.

- CAG memory is slower than the main memory.

Q:

1! + 2! + 3! + 4! + ......... + 50! Find the unit digit of?

959 0

  • 1
    1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 2. "3"

Q:

The sum of square of three positive integers is 323. If the sum of squares of two numbers is twice the third, their product is

959 0

  • 1
    255
    Correct
    Wrong
  • 2
    260
    Correct
    Wrong
  • 3
    265
    Correct
    Wrong
  • 4
    270
    Correct
    Wrong
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Answer : 1. "255"

Q:

Which of the following is the least 6-digit number that is divisible by 93?

959 0

  • 1
    100065
    Correct
    Wrong
  • 2
    100070
    Correct
    Wrong
  • 3
    100075
    Correct
    Wrong
  • 4
    100068
    Correct
    Wrong
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Answer : 4. "100068"

Q:

A number when divided by 899 gives a remainder 63. If the same number is divided by 29, the remainder will be

950 0

  • 1
    10
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "5"
Explanation :

Solution: $${Remainder\over 29}={7\over 9}$$

=> remainder (शेषफल)=5

Q:

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

935 0

  • 1
    41
    Correct
    Wrong
  • 2
    21
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 3. "42"

Q:

The product of 1.7 ´ 104 and 12.5 ´ 10–6 is expressed in the standard form as k ´ 10n . The value of (2k + n) is

933 0

  • 1
    2.125
    Correct
    Wrong
  • 2
    1.125
    Correct
    Wrong
  • 3
    2.25
    Correct
    Wrong
  • 4
    3.25
    Correct
    Wrong
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Answer : 4. "3.25"

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