Number Theory MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Number Theory, a fundamental topic in the field of Aptitude. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Number Theory MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Number Theory mcq questions that explore various aspects of Number Theory problems. Each MCQ is crafted to challenge your understanding of Number Theory principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Aptitude tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Number Theory MCQs are your pathway to success in mastering this essential Aptitude topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Number Theory. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Number Theory knowledge to the test? Let's get started with our carefully curated MCQs!

Number Theory MCQs | Page 10 of 17

Q91.
9548 + 7314 = 8362 + (?)
Discuss
Answer: (c).8500
Q92.
In a division sum, the remainder is 0. As student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient ?
Discuss
Answer: (d).20
Q93.
2 + 2^2 + 2^3 + ... + 2^9 = ?
Discuss
Answer: (b).1022
Q94.
The sum of even numbers between 1 and 31 is:
Discuss
Answer: (c).240
Q95.
If the number 91876 * 2 is completely divisible by 8, then the smallest whole number in place of * will be:

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (c).3
Q96.
2056 x 987 = ?
Discuss
Answer: (b).2029272
Q97.
On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:
Discuss
Answer: (a).47619
Q98.
If 60% of 3/5 of a number is 36, then the number is:
Discuss
Answer: (b).100
Q99.
If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x + y = ?
Discuss
Answer: (a).2 or 6
Q100.
The difference of the squares of two consecutive odd integers is divisible by which of the following integers ?

a.

3

b.

6

c.

7

d.

8

Discuss
Answer: (d).8