Number System and HCF and LCM Questions for the SSC CGL Exam | Free online All questions about the number system and HCF & LCM | Questions about SSC CGL chapters (2023)

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(Video) SSC CGL 2023 | SSC CGL Math Previous Year Questions, LCM & HCF, Number System | SSC CGL Maths Class

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(Video) Number System, HCF and LCM SSC CGL MAINS questions from 2011 to 2018 tier 2, Tier 1 CHSL, CPO, CDS

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FAQs

How do you solve the HCF and LCM questions? ›

If one of the numbers is 35, find the other. Let the Other number be X. then, Product of numbers = product of their H.C . F and L.C.M 35*x= 7* 210 ⇒ x= 7*210/35 = 42 Hence, the other number is 42.

What are the questions asked in SSC CGL? ›

The exam pattern of SSC CGL Tier 1 consists of 100 questions from 4 different subjects, 25 questions from each subject. The subjects include Reasoning, General Awareness, Quantitative Aptitude, and English Comprehension. Candidates have to solve all the questions within a time frame of 60 minutes.

What is LCM and HCF concept SSC? ›

The definition of HCF and LCM is simple. The HCF of two or more numbers is the most significant number that divides them entirely. The LCM of those numbers is the least number that can be exactly divisible by two or more given numbers.

How to make calculation fast for SSC CGL? ›

SSC Maths Tricks
  1. Memorize Table up to 30.
  2. Memorize square up to 50.
  3. Memorize cube up to 20.
  4. Memorize all the formulas of Algebra.
  5. Memorize all the formulas of Mensuration 2D and 3D.
Feb 3, 2023

What is the short trick for LCM? ›

Least Common Multiple

Take the highest count of each prime number. There are two 7s in 98, but only one 7 in 91, so take two 7s, 2 and 13. Multiply these together: 7 * 7 * 2 * 13 = 1274. Therefore, the LCM of 91 and 98 is 1274.

What is the trick for HCF? ›

First, divide the large number by a small number. If the remainder is left, then divide the first divisor by remainder. If the remainder divides the first divisor completely, then it is the HCF or highest common factor of the given two numbers.

Which subject is best for SSC CGL exam? ›

SSC CGL Tier 1 or Prelims examination has questions from all four subjects with equal weightage but the SSC CGL Tier 2 examination tests aspirants primarily on Maths and English which have a total weightage of 600 out of the total 700 marks. This makes these two the most important subjects for SSC CGL selection.

What is the pattern of SSC CGL Tier 3 exam? ›

SSC CGL Tier 3 Exam Pattern

The question paper will be of 100 marks and the time allotted for the examination will be 60 minutes. It will consist of Essay writing, Letter/Application/Précis writing, and Passage writing. Candidates who are eligible for scribe will be allotted 1 hour and 20 minutes for the examination.

What is HCF and LCM rules? ›

The H.C.F. defines the greatest factor present in between given two or more numbers, whereas L.C.M. defines the least number which is exactly divisible by two or more numbers. H.C.F. is also called the greatest common factor (GCF) and LCM is also called the Least Common Divisor.

What is HCF and LCM simple example? ›

The highest common factor is found by multiplying all the factors which appear in both lists: So the HCF of 60 and 72 is 2 × 2 × 3 which is 12. The lowest common multiple is found by multiplying all the factors which appear in either list: So the LCM of 60 and 72 is 2 × 2 × 2 × 3 × 3 × 5 which is 360.

What is LCM and HCF questions? ›

4) H.C.F/G.C.F: (Highest Common Factor / Greatest Common Factor). H.C.F of two or more numbers is the greatest number which divides each number exactly. 5) L.C.M.: (Lowest common multiple). The least number exactly divisible by each one of the given numbers is called least common multiple.

How can I improve my fill in blanks for SSC CGL? ›

Fill in the Blanks SSC CGL – Do's and Don'ts
  1. Notice sentence pattern/syntax while reading (newspaper/novels/magazines)
  2. Build your vocabulary and brush up your grammar.
  3. Learn idioms & phrases, synonyms & antonyms everyday.
  4. Practice forming sentences.
Feb 15, 2023

How many wpm is required for cgl? ›

The candidate must posses a speed of 35 Word Per Minute in English to qualify in the typing test.

What is the maths important formula for SSC CGL? ›

Important Algebra Formulas for SSC CGL 2022-23
  • a² – b² = (a-b)(a+b)
  • (a+b)² = a² + 2ab + b²
  • (a-b)² = a² – 2ab + b²
  • a² + b² = (a-b)² +2ab.
  • (a+b+c)² = a²+b²+c²+2ab+2ac+2bc.
  • (a-b-c)² = a²+b²+c²-2ab-2ac+2bc.
  • a³-b³ = (a-b) (a² + ab + b²)
  • a³+b³ = (a+b) (a² – ab + b²)
Jan 4, 2023

What is LCM examples and answers? ›

LCM denotes the least common factor or multiple of any two or more given integers. For example, L.C.M of 16 and 20 will be 2 x 2 x 2 x 2 x 5 = 80, where 80 is the smallest common multiple for numbers 16 and 20.

What is the LCM of 24 and 36? ›

LCM of 24 and 36 is 72. In Maths, the LCM of any two numbers is the value which is evenly divisible by the given two numbers. Least common multiple of 24 and 36 is the smallest number we get among the common multiples. (24, 48, 72, 96, ….)

Is 3 months enough for SSC CGL? ›

Yes. You can crack the SSC CGL exam in 3 months. It requires completed focus and a proper study plan. For 3 months, plan every hour of your study schedule.

Is 6 months enough for SSC CGL? ›

Generally, it is recommended to dedicate 4-6 months for effective preparation for the SSC CGL exam. However, the duration of preparation can be longer or shorter depending on the individual's learning pace and availability of time.

What are the top 5 posts in SSC CGL? ›

Some of the best posts in SSC CGL are the following.
  • Income tax inspector.
  • Assistant Enforcement Officer (Directorate of Enforcement)
  • Assistant Section Officer in Ministry of External Affairs.
  • Sub Inspector in Central Bureau of Investigation.
  • Excise Inspector.
  • Assistant Audit Officer in C&AG.
  • Divisional Accountant.

What is the qualifying marks for SSC CGL Tier 1? ›

Moreover, Qualifying Marks for SSC CGL Tier 1 Exam is 45% marks which means all the candidates have to score above it.

How to calculate SSC CGL Tier 2 marks? ›

How to Calculate Marks For SSC CGL Tier 2 Results?
  1. The Tier 2 exam carries a total of 800 marks. ...
  2. Each question carries 2 marks in all 4 papers. ...
  3. This is an MCQ type paper and there is a set marking scheme for this.
  4. There is a negative marking of 0.50 marks for every wrong answer.

Is there normalisation in SSC CGL Tier 2? ›

SSC CGL 2022 tier-2 will be conducted from 2nd to 7th March 2022. It will be conducted in 2 shifts each day. Hence, normalization will be done for SSC CGL 2022 tier-2.

Is LCM HCF true or false? ›

Hence, the statement “ HCF of two numbers is always a factor of their LCM” is true.

Is HCF higher than LCM? ›

The Highest Common Factor of two or more numbers is greater than their Lowest Common Multiple.

What is the HCF of 24 and 36? ›

The HCF of 24 and 36 is 12. HCF is the greatest number that can divide 24 and 36 without having any remainder. HCF stands for Highest Common Factor.

What is the LCM and HCF of 26 and 91? ›

Therefore, the LCM is 182. Example 2: Find the HCF of 26 and 91, if their LCM is 182. Therefore, the highest common factor of 26 and 91 is 13.

What is the HCF of 12 and 18? ›

The HCF of 12 and 18 is 6. HCF is the greatest integer which can divide the numbers 12 and 18 evenly. The factors of 12 are 1, 2, 3, 4, 6, and 12, and the factors of 18 are 1, 2, 3, 6, 9, and 18.

What is LCM and HCF in competitive exams? ›

The minimum number of LCMs that are absolutely divisible from each given number is called the least common multiple (LCM). On the other hand, HCF is the greatest common factor for those numbers, the largest number dividing two or more numbers.

What is the LCM and HCF of two positive numbers are 450 and 50 respectively? ›

HERE THE LCM IS 450 AND HCF IS 50 AND THE GIVEN NUMBER IS 125. ACCORDING TO FORMULA, YOUR ANSWER IS 180.

What is the formula of HCF or LCM? ›

HCF = HCF of Numerators/LCM of denominators. LCM = LCM of Numerators/ HCF of Denominators.

What is HCF and LCM with example? ›

The highest common factor is found by multiplying all the factors which appear in both lists: So the HCF of 60 and 72 is 2 × 2 × 3 which is 12. The lowest common multiple is found by multiplying all the factors which appear in either list: So the LCM of 60 and 72 is 2 × 2 × 2 × 3 × 3 × 5 which is 360.

How do you find the third number when given HCF and LCM? ›

Detailed Solution

HCF is the highest common factor of some given numbers. When we divide the numbers by their HCF, the quotients will be prime to each other. ∴ The third number will be 30. The formula LCM × HCF = Product of the numbers is only applicable in the case of two numbers.

What is the relationship between LCM and HCF questions? ›

(i) The product of LCM and HCF of the given natural numbers is equivalent to the product of the given numbers. Consider two numbers A and B, then. (ii) The LCM of given co-prime numbers is equal to the product of the numbers since the HCF of co-prime numbers is 1.

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4. Number System & L.C.M H.C.F Tricks | AP SI | TS SI | AP SI MAINS PART- 3 | SSC CGL | BANK |RRB NTPC
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References

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