Number System Questions and Answers updated daily – Aptitude

Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.

Number System Questions

441. The difference between a two digit number and the number obtained by interchanging two digits of the number is 9.The sum of the two digits of the number is 15. What is product of the two digits of two digit number ? 

Correct Ans:56
Sum of the digits is 15, this can happen only when the digits are 7 and 8.

The number is 87, interchanging digits we get 78,

Difference between these two numbers = 9

Product of these two digits = 7 x 8 = 56

442. The product of two consecutive even numbers is 15128. Find the average of these two numbers.

Correct Ans:123
We wil go from the option. We will eliminate 133 and 139, since their product will exceed 16900.

Now the tug of war is between 123 and 127.

Lets take 123, if 123 is the average then the consecutive even numbers will be 122 and 124.

Now, observe, 122 x 124 = ....8, that is the resulting number ends with 8.

Now you try for 127.

(HINT : The consecutive even number with 127 as average us 126 and 128)

The two numbers are 122 and 124. Average is 123.

443. What is the least number to be added with 2016 to make it perfect square?

Correct Ans:9
452 = 2025, If we add 9 with 2016 we get 2025.

444. When all students in a school are made to stand in a row of 54, 30 such rows are formed. If the students are made to stand in the rows of 45, how many such rows can be formed ?

Correct Ans:36
Given number of rows = 54, each row contains 30 students.

Total number of students = 54 x 30.

If there are 45 and k rows, then 45 x k = 54 x 30

Dividing both sides by 9, we get 5 x k = 6 x 30 => k 36

Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you.

Online Test on Number System @ Fresherslive

This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level.

Why To Practice Number System Test questions Online @ Fresherslive?

Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary.
Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview.
Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews.
Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method.
Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests.

Why Fresherslive For Number System Online Test Preparation?

Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers.
You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future.

Online Test for Data Interpretation
Online Test for C Language
FreshersLive - No.1 Job site in India. Here you can find latest 2023 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail... Protection Status