Number System Questions Practice Question and Answer

Q:

Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:

409 0

  • 1
    1558
    Correct
    Wrong
  • 2
    1458
    Correct
    Wrong
  • 3
    1585
    Correct
    Wrong
  • 4
    1485
    Correct
    Wrong
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Answer : 4. "1485"
Explanation :

Given :- Two positive numbers differ by 1280 

When the greater number is divided by the smaller number The quotient is 7 and the remainder is 50 

Concept :- Dividend = Quotient × divisor + remainder 

Calculation :- Let greater number = a and Smaller number = b From question, ⇒ a - b = 1280 ....(1) Again from question, ⇒ a = 7b + 50 ....(2) 

Put the value of a from equation (2) into equation (1) ⇒ 7b + 50 - b = 1280 ⇒ 6b = 1280 - 50 ⇒ 6b = 1230 ⇒ b = (1230/6) ⇒ b = 205 

Put the value of b in equation (1) ⇒ a - 205 = 1280 ⇒ a = 1280 + 205 ⇒ a = 1485 ⇒ Greater number = 1485 ∴ Greater number is 1485

Q:

if 5432*7 is divisible by 9, then the digit in place of * is :

4054 1

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 3. "6"
Explanation :

Q:

(49)15 – 1 is exactly divisible by: 

310 0

  • 1
    29
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 2. "8"
Explanation :

Q:

96-11 when divided by 8 would leave a remainder of :

486 0

  • 1
    6
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 1. "6"
Explanation :

Q:

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

371 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 cube of 997 is

311 0

  • 1
    991026973
    Correct
    Wrong
  • 2
    991029673
    Correct
    Wrong
  • 3
    991029773
    Correct
    Wrong
  • 4
    991027273
    Correct
    Wrong
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Answer : 1. "991026973"
Explanation :

Q:

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

100, 108, 120, 136, 156, ?

340 0

  • 1
    170
    Correct
    Wrong
  • 2
    160
    Correct
    Wrong
  • 3
    150
    Correct
    Wrong
  • 4
    180
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "180"

Q:

If all the vowels are arranged in alphabetical order from left to right and after that, all the consonants are arranged in alphabetical order from left to right of the word ‘ALONGWITH’, then which letter is fourth from the right end?

385 0

  • 1
    T
    Correct
    Wrong
  • 2
    L
    Correct
    Wrong
  • 3
    G
    Correct
    Wrong
  • 4
    O
    Correct
    Wrong
  • 5
    W
    Correct
    Wrong
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Answer : 2. "L"

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