Number system Practice Question and Answer

Q:

Which is the largest 3 digit number that is exactly divisible by 15, 25 and 30?

1373 0

  • 1
    975
    Correct
    Wrong
  • 2
    930
    Correct
    Wrong
  • 3
    960
    Correct
    Wrong
  • 4
    900
    Correct
    Wrong
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Answer : 4. "900 "

Q:

Let x be the least number divisible by 13, such that when x is divided by 4, 5, 6, 7, 8 and 12, the remainder in each case is 2. The sum of the digits of x is:

1372 0

  • 1
    10
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    11
    Correct
    Wrong
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Answer : 4. "11"

Q:

A number when divided by 893 the remainder is 193. What will be the remainder when it is divided by 47?

1362 0

  • 1
    19
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    23
    Correct
    Wrong
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Answer : 2. "5"

Q:

What value will come in place of question mark (?) in the questions given below?

88 × 25 ÷ 4 + 63 = ?

1355 0

  • 1
    760
    Correct
    Wrong
  • 2
    768
    Correct
    Wrong
  • 3
    770
    Correct
    Wrong
  • 4
    766
    Correct
    Wrong
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Answer : 4. "766"

Q:

How many natural numbers divisible by 7 are there between 3 and 200? 

1353 0

  • 1
    28
    Correct
    Wrong
  • 2
    29
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 1. "28 "
Explanation :

Number just greater than 3 which is divisible by 7 = 7

Number just smaller than 200 which is divisible by 7 = 196

Here, a = 7, an = 196,

d = 7, n = 8

a= a + (n –1)d

⇒196 = 7 + (n – 1) × 7

⇒ 

⇒ n = 27 + 1 = 28

Note : We can find the answer after dividing 200 by 7. The quotient is our answer.

Q:

What is the largest four digit number which is also complete?

1346 0

  • 1
    9999
    Correct
    Wrong
  • 2
    9909
    Correct
    Wrong
  • 3
    9801
    Correct
    Wrong
  • 4
    9081
    Correct
    Wrong
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Answer : 3. "9801"

Q:

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

190×38÷4=?

1342 0

  • 1
    1850
    Correct
    Wrong
  • 2
    1508
    Correct
    Wrong
  • 3
    1805
    Correct
    Wrong
  • 4
    1085
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "1805"

Q:

A man read 2/5 part of a book in 1st day, 34% in second day and remaining page in next two days. In two days he read equal number of page. If he read 52 page on last day, then find out how many page did the book contain? 

1337 0

  • 1
    500
    Correct
    Wrong
  • 2
    560
    Correct
    Wrong
  • 3
    510
    Correct
    Wrong
  • 4
    400
    Correct
    Wrong
  • 5
    460
    Correct
    Wrong
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Answer : 4. "400 "

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