Practice & Assessment
Test your understanding of Basics and Number System
Multiple Choice Questions
10Which of the following is a prime number?
The HCF of 36 and 48 is:
LCM of 12, 18, and 24 is:
What is the unit digit of 7 to the power 84?
The sum of all prime numbers between 10 and 20 is:
What is the remainder when 5 to the power 50 is divided by 6?
HCF of two numbers is 12, LCM is 432, and one number is 48. The other number is:
How many factors does 72 have?
The smallest number divisible by 2, 3, 5, and 7 is:
The number 1 is classified as:
Mini Project
Number System Placement Mock Test
Complete a timed 20-question test covering all number system topics including primes, LCM, HCF, divisibility rules, remainders, and unit digits in 20 minutes with no calculator. After finishing, review every wrong answer, categorize each error as a concept error or a calculation error, and create a focused revision plan for your weakest sub-topic before your next practice session.