Number System Questions Practice Question and Answer

Q: Smallest prime number greater than 200? 2369 0

  • 1
    201
    Correct
    Wrong
  • 2
    205
    Correct
    Wrong
  • 3
    211
    Correct
    Wrong
  • 4
    203
    Correct
    Wrong
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Answer : 3. "211"
Explanation :

Answer: C) 211 Explanation: From the trial and error method of division, 201 is divisible by 3 205 is divisible by 5 203 is divisible by 7   Hence, after eliminating three options, remained is 211 and is divisible by only 1 and itself.    Therefore, 211 is the smallest prime number greater than 200.

Q:

If 2A = 3B = 7C = 42, then what is the value of A × B ÷ C?

2327 0

  • 1
    21
    Correct
    Wrong
  • 2
    56
    Correct
    Wrong
  • 3
    49
    Correct
    Wrong
  • 4
    34
    Correct
    Wrong
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Answer : 3. "49"

Q:

Direction : What should come in place of the question (?) in the following question.

35% of 430 + ? % of 360 = 276.5

2317 0

  • 1
    30
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    45
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
  • 5
    none of these
    Correct
    Wrong
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Answer : 5. "none of these"

Q:

If the 5 digit number 538xy is divisible by 3, 7 and 11, then the value of (x2 +y2)  is:

2254 0

  • 1
    25
    Correct
    Wrong
  • 2
    13
    Correct
    Wrong
  • 3
    17
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 2. "13"

Q:

1332.89+171.928+17.01 +?2=1690.87

2239 0

  • 1
    27
    Correct
    Wrong
  • 2
    17
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    13
    Correct
    Wrong
  • 5
    19
    Correct
    Wrong
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Answer : 4. "13"

Q:

There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11. What is the range of the data set? 

2210 0

  • 1
    3
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 2. "6"

Q:

A number whose one - fifth part increased by 4 is equal to its one - fourth part diminished by 10 is: 

2202 0

  • 1
    260
    Correct
    Wrong
  • 2
    280
    Correct
    Wrong
  • 3
    240
    Correct
    Wrong
  • 4
    270
    Correct
    Wrong
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Answer : 2. "280 "

Q:

In an office, there are 108 tables and 132 chairs. If of the tables and of the chairs are broken. How many people can work in the office if each person requires one table and one chair? 

2115 0

  • 1
    92
    Correct
    Wrong
  • 2
    99
    Correct
    Wrong
  • 3
    86
    Correct
    Wrong
  • 4
    90
    Correct
    Wrong
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Answer : 4. "90 "

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