Number system

Every Number system attribute, distilled.

Number system is an important topic in Mathematics for competitive exam aspirants. This guide gives you a clear, exam-focused explanation of Number system, shows how it is typically asked, and pairs it with solved practice questions so you can learn the approach and test yourself right away. Work through the questions below to build speed and accuracy.

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Questions

31

Solutions

All inline

Q1Find the HCF of 72 and 108.EasySolve →Q2Find the smallest prime number.EasySolve →Q3Find the LCM of 12 and 18.EasySolve →Q4What is the sum of the first 10 natural numbers?EasySolve →Q5What is the remainder when 345 is divided by 11?MediumSolve →Q6Convert decimal 255 to binary.HardSolve →Q7Find the sum of the first 20 even numbers.HardSolve →Q8Find the HCF of 210 and 45.MediumSolve →Q9If x is divisible by 8 and 12, find the smallest such x greater than 100.HardSolve →Q10The product of two numbers is 180 and their HCF is 6. Find their LCM.HardSolve →

Every Number system attribute, distilled.

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