Number system Practice Question and Answer

Q: The difference between 4632 and 20000 is what number 3582 0

  • 1
    15368
    Correct
    Wrong
  • 2
    12652
    Correct
    Wrong
  • 3
    14562
    Correct
    Wrong
  • 4
    14965
    Correct
    Wrong
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Answer : 1. "15368"
Explanation :

Answer: A) 15368 Explanation: The difference between 4632 and 20000 is given by subtracting smaler number from the bigger number. Here the bigger number is 20000 Smaller number is 4632 Now, subtracting 4632 from 20000 20000 - 4632 = 15368 and the resut is an even number.   Hence, The difference between 4632 and 20000 is 15368 and is an even number.

Q:

The least value of n, such that (1 + 3 + 32 + ... + 3n) exceeds 2000, is-

1615 0

  • 1
    7
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 2. "8 "

Q:

The median of 31, 25, 17, 23, 45 and 59 is:

1408 0

  • 1
    23
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 4. "28"

Q:

The least number that should be added to 2,397 so that the sum is exactly divisible by 3, 4, 5 and 6 ?

1009 1

  • 1
    6
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 3. "3"

Q:

If 13 + 23 + .....+103 = 3025 then 4 + 32 + 108 + ..... 4000 is equal to -

2881 0

  • 1
    12300
    Correct
    Wrong
  • 2
    12500
    Correct
    Wrong
  • 3
    12100
    Correct
    Wrong
  • 4
    11800
    Correct
    Wrong
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Answer : 3. "12100"

Q:

Find the sum of 302+312+322+________+802

1246 0

  • 1
    172525
    Correct
    Wrong
  • 2
    173880
    Correct
    Wrong
  • 3
    165325
    Correct
    Wrong
  • 4
    163525
    Correct
    Wrong
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Answer : 3. "165325 "

Q:

If 999x + 888y = 1332 and 888 x + 999y = 555.then the value of (x + y) is-

1264 0

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

Q:

If 40% of a number is equal to 3 / 5th of another number, what will be the ratio of the first number and the second number?

1321 1

  • 1
    3 : 2
    Correct
    Wrong
  • 2
    2 : 3
    Correct
    Wrong
  • 3
    3 : 4
    Correct
    Wrong
  • 4
    Cannot determined
    Correct
    Wrong
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Answer : 1. "3 : 2"

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