Arithmetic Number System:Unlocking Mathematical Prowess: Conquering Number System Challenges in Indian Competitive Exams. In the relentless pursuit of success in Indian competitive exams, conquering number system questions is essential. This article delves into effective strategies and shortcuts to tackle these mathematical challenges, ensuring you’re well-prepared to excel in your upcoming tests like SSC, Railway, SSC-CGL, Banking, IBPS, Delhi Police, ICAR, SSC, Railway, SSC-CGL, UGC NET, DSSSB, RPF, DRDO, ISRO, CISF, CDS, NDA, ITBP, Airforce, BSF, DSSSB & Others State SSC, CRPF, RBI, RRB, EPFO, CTET, UGC NET, DSSSB, RPF, DRDO, ISRO, CISF, CDS, NDA, ITBP, Airforce, BSF, CAT, CMAT & Others.

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Arithmetic Number System Quiz Test-1

20 MCQs 20 Marks 30 Minutes

1 / 20

If a number is divisible by both 4 and 9, which of the following is it definitely divisible by?

Explanation:

If a number is divisible by both 4 and 9, it is definitely divisible by their least common multiple, which is 36.

2 / 20

What is the sum of the first five prime numbers?

Explanation:

The first five prime numbers are 2, 3, 5, 7, and 11. Adding them together: 2 + 3 + 5 + 7 + 11 = 28.

3 / 20

Which of the following is not a prime number?

Explanation:

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. 15 is divisible by 1, 3, 5, and 15, so it is not a prime number.

4 / 20

What is the next prime number after 17?

Explanation:

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. 19 is the next prime number after 17.

6 / 20

What is the largest prime number less than 100?

Explanation:

The largest prime number less than 100 is 97, as it is not divisible by any other positive integer except 1 and itself.

7 / 20

Every rational number is also

Explanation:

Both rational and irrational numbers taken together are called Real numbers.
Therefore, every real number is either a rational number or an irrational number. Hence, every rational number is a real number.

9 / 20

What is the value of π (pi) approximately equal to?

Explanation:

pi is approximately equal to 3.14 and is commonly used in mathematics to represent the ratio of the circumference of a circle to its diameter.

10 / 20

What is the square of -5?

Explanation:

The square of a number is obtained by multiplying the number by itself. In this case, (-5) * (-5) = 25.

11 / 20

Which of the following numbers is both a perfect square and a perfect cube?

Explanation:

81 is both a perfect square (9 * 9) and a perfect cube (4 * 4 * 4).

12 / 20

What is the value of 2^4 + 3^3?

Explanation:

2^4 means 2 raised to the power of 4, which is 16. And 3^3 means 3 raised to the power of 3, which is 27. Therefore, 2^4 + 3^3 = 16 + 27 = 43.

13 / 20

What is the product of all the prime numbers less than 10?

Explanation:

The prime numbers less than 10 are 2, 3, 5, and 7. The product of these numbers is 2 * 3 * 5 * 7 = 120.

14 / 20

What is the result of dividing a number by zero?

Explanation:

Division by zero is undefined in mathematics, and it is said to approach infinity as the denominator gets closer to zero.

15 / 20

Which of the following is a perfect square?

Explanation:

A perfect square is a number that can be expressed as the square of an integer. 36 is the square of 6.

16 / 20

What is the result of multiplying two negative numbers?

Explanation:

When you multiply two negative numbers, the result is always positive. For example, (-2) * (-3) = 6.

17 / 20

What is the smallest prime number?

Explanation:

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. 2 is the smallest and only even prime number.

18 / 20

Which of the following is a rational number?

Explanation:

A rational number is any number that can be expressed as a fraction of two integers, where the denominator is not zero. 1/3 is a fraction and meets this criterion.

19 / 20

What is the square root of 2 to three decimal places?

Explanation:

The square root of 2 to three decimal places is approximately 1.414.

Topics/Syllabus covered in this Chapter’s Mock Test Series

MCQs set on Arithmetic Number System
Explanations/Solutions of difficult questions are also given. As soon as you select the wrong answer, the explanation will be shown below the question.
If you need explanation/solution of any other question, then click below the question in left corner and submit your query.