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Important: Methods to Solve Questions on Number System Video Lecture | General Aptitude for GATE - Mechanical Engineering

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FAQs on Important: Methods to Solve Questions on Number System Video Lecture - General Aptitude for GATE - Mechanical Engineering

1. What are the different methods to solve questions on number system?
Ans. Some of the methods to solve questions on number system are as follows: 1. Prime factorization method 2. Divisibility rules method 3. Vedic math method 4. Euclid's division algorithm method 5. Binary number system method
2. How can I determine the unit's digit of a number?
Ans. To determine the unit's digit of a number, we need to follow the cyclicity of the last digit of the numbers. For example, the unit's digit of 2^n repeats in a cycle of 2, 4, 8, 6, and so on. Similarly, the unit's digit of 3^n repeats in a cycle of 3, 9, 7, 1, and so on.
3. How can I convert a decimal number to a fraction?
Ans. To convert a decimal number to a fraction, we need to follow these steps: 1. Write the decimal number as a fraction with the decimal as the numerator and 1 as the denominator. 2. Simplify the fraction by multiplying or dividing both the numerator and denominator by the same number until the decimal part is eliminated.
4. How can I find the LCM and HCF of numbers?
Ans. To find the LCM and HCF of numbers, we can use the following methods: 1. Prime factorization method 2. Division method 3. Venn diagram method 4. Euclid's division algorithm method
5. How can I solve word problems related to number system?
Ans. To solve word problems related to number system, we need to follow these steps: 1. Read the problem carefully and understand the given conditions. 2. Identify the unknown quantity in the problem. 3. Formulate an equation or system of equations based on the given conditions and the unknown quantity. 4. Solve the equations using appropriate methods to find the unknown quantity. 5. Check the solution by verifying if it satisfies the conditions given in the problem.
95 videos|84 docs|107 tests
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