Numerical Aptitude Questions and Answers



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Which one of the following is not a prime number?


A. 31
B. 61
C. 71
D. 91

View Answer

Answer & Explanation:

Answer: Option D

Explanation: 91 is divisible by 7. So, it is not a prime number.





(112x54)=?;


A. 67000
B. 70000
C. 76500
D. 77200

View Answer

Answer & Explanation:

Answer: Option B

Explanation:

Numerical Aptitude Questions and Answers




It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?


A. 216+1
B. 216-1
C. 7x223
D. 296+1

View Answer

Answer & Explanation:

Answer: Option D

Explanation:

Numerical Aptitude Questions and Answers





What least number must be added to 1056, so that the sum is completely divisible by 23 ?


A. 2
B. 3
C. 18
D. 21

View Answer

Answer & Explanation:

Answer: Option A

Explanation: If the number 1056 is completely divisible by 23 means, remainder should come zero.

But if we divide 1056 by 23, the remainder is 2.

So if 2 is added to the 1056, we get remainder 0.

Therefore solution is 2





1397 x 1397 = ?


A. 1951609
B. 1981709
C. 18362619
D. 2031719

View Answer

Answer & Explanation:

Answer: Option A

Explanation: 1397 x 1397 = (1397)2

= (1400 - 3)2

= (1400)2 + (3)2 - (2 x 1400 x 3)

= 1960000 + 9 - 8400

= 1960009 - 8400

= 1951609.





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Leave comments and discuss the questions above here.


jhuna mohapatra
Said:
nice
2 years ago
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Mumtaz
Said:
Could someone explain to me prime numbers? Not sure what they are.
2 years ago
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chitra
Replied:
given number is divide bi it and 1. for example 17 can be divide only by 1and 17.
2 years ago
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Saleem
Replied:
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
2 years ago
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priya
Replied:
the number which are not divisible is known as prime no.
2 years ago
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arun sharma
Said:
good
2 years ago
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Nikum
Said:
good...
2 years ago
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Nikum
Said:
nice
2 years ago
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Varnit Jain
Said:
good one...
2 years ago
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Prakash
Said:
Its Nice One........
2 years ago
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monika
Said:
very helpful! thank u...
2 years ago
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rani
Said:
so understanding.
2 years ago
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