Numbers Aptitude Test Paper 1
Solved Questions:
1) What is the difference in the place value of 5 in the numeral 754853?
- 49500
- 49950
- 45000
- 49940
The Correct answer is (B)
Answer with explanation:
The digit 5 has two place values in the numeral, 5 * 104 = 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?
- 4
- 3
- 5
- 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.
- 4
- 5
- 6
- 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
- 4
- 3
- 2
- 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?
- 3
- 4
- 5
- 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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