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Numbers Aptitude Test Paper 1


Solved Questions:

1) What is the difference in the place value of 5 in the numeral 754853?

  1. 49500
  2. 49950
  3. 45000
  4. 49940

The Correct answer is (B)

Answer with explanation:

The digit 5 has two place values in the numeral, 5 * 105 = 50,000 and 5 * 101 = 50.

∴Required difference = 50000 - 50 = 49950

2) What should be added to 1459 so that it is exactly divisible by 12?

  1. 4
  2. 3
  3. 5
  4. 6

The Correct answer is (C)

Answer with explanation:

On dividing 1459 by 12, the remainder is 7.

∴The number to be added would be = 12 - 7 = 5

3) If the number 467X4 is divisible by 9, find the value of the digit marked as X.

  1. 4
  2. 5
  3. 6
  4. 7

The Correct answer is(C)

Answer with explanation:

The number is divisible by 9 so the sum of its digits would be divisible by 9.

∴4 + 6 + 7 + X + 4 = 21+ X, must be divisible by 9.

X = 6, fulfills our requirement so the required digit is 6.

4) 7X2 is a three digit number and X is the missing digit. If the number is divisible by 6, the missing digit is

  1. 4
  2. 3
  3. 2
  4. 5

The Correct answer is (B)

Answer with explanation:

The given number is divisible by 6 so it would be divisible by 2 and 3. As the last digit is 2 whatever be the value of X, it would be divisible by 2.

Now, 7+X+2 = 9 + X, must be divisible by 3.

∴X = 3 makes the number divisible by 3, so 3 is the required digit.

5) What smallest number should be subtracted from 9805 so that it is divisible by 8?

  1. 3
  2. 4
  3. 5
  4. 7

The Correct answer is (C)

Answer with explanation:

On dividing 9805 by 8, the remainder is 5. So, 5 is the smallest number which should be subtracted from 9805 to make it divisible by 8.







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