Sep 19, 2016 here are three examples of word problems which can be solved using the gcf or the lcm. We can combine the previous tests for divisibility by testing separately for divisibility by the highest power. Find the hcf of 18 and 45 the highest common factor hcf of 18 and 45 is 9. Properties of hcf and lcm formulas and solved problems. Find a the lowest common multiple lcm and b the highest common factor hcf. As a humanitarian effort, food ration is distributed to each refugee in a refugee camp. All students, freshers can download aptitude quiz questions with answers as pdf files and ebooks. Pdf the main purpose of this study is to improve students. Lcm and hcf questions and answers updated daily aptitude. If one of the numbers is 15, find the other number. The lcm of 2 numbers is highest common factor of those numbers. The aim of this project was to combine my skills as an expert in dynamic geometry and. All questions and answers from the mathematics solutions book of class 7 math chapter 3 are provided here for you for free.
F is 49, the two numbers can be assumed as 49x and 49y. Highest common factor find the hcf of 12 and 32 the highest common factor hcf of 12 and 32 is 4. Ncert curriculum for cbseicse class 6 lcm and hcf unlimited worksheets every time you click the new worksheet button, you will get a brand new printable pdf worksheet on lcm and hcf. In this section, you will learn how to find highest common factor hcf and least common multiple lcm of the given numbers. Allindiaexams provides you lots of fully solved aptitude problems on lcm and hcf questions and answers with explanation. Aug 24, 2016 word problems where pupils have to identify whether it is a hcf or lcm question before answering. Typical problems on hcf and lcm gcd and lcm problems. M questions with detailed description, explanation will help you to master the topic. F question and answers with easy solutions in aptitude topic are present here. Category questions section with detailed description, explanation will help you to master the topic. You can download lcm and hcf question free pdf, so that you get all important questions at one place. If the applicant keep practicing problems on lcm and hcf aptitude questions, it will lead to the improvement in problemsolving capacity. Solutions for the assessment factors, multiples, primes, prime factors, lcm and hcf.
In mathematics, the greatest common divisor gcd of two or more integers, which are not all. It is misleading and is used by very many coaching institutes to lure gullible students to them. Quantitative aptitude hcf and lcm tutorial download pdf. Lcm of fraction lcm of numerator hcf of denominator. This is a useful booklet to be used as homework different pages to be set as you go through hcf, lcm and pfd topics or as a consolidation lesson piece of work. Also, people can meet the interview sessions effectively. Hence, the least possible number of casks of equal size required is 42. The computation of the greatest common divisors belongs thus to the class of problems solvable in.
Quantitative aptitude questions and answers hcf and lcm. Understanding properties of hcf and lcm, and seamlessly combining different mathematical concepts in solving word problems. Collaboratively engaging with gcfs and lcms office of the. The product of two numbers is equal to the product of their hcf and lcm. Chapter 2 gcf and lcm word problems 6th grade youtube. Quantitative aptitude hcf and lcm tutorial study material. Solved 50 lcm and hcf questions and answers section with explanation for various online exam preparation, various interviews, logical reasoning category online test.
Sep 24, 2015 this is a workbook ive put together from free worksheets available on the tes website. Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. Pencil, pen, ruler, protractor, pair of compasses and eraser. If a days ration is 284 packets of biscuits, 426 packets of instant noodles and 710 bottles of. Problems on lcm and hcf aptitude questions and answers.
I use this with my year 8 lower set to consolidate. In this program called the static method lcmcalculation a,b in the main method, lcmcalculation a,b will calculate the lcm of two numbers. Mathematics solutions for class 7 math chapter 3 hcf and lcm. Hcf of fraction hcf of numerator lcm of denominator. Highest common factor find the hcf of 12 and 32 the highest common factor hcfof 12 and 32 is 4. There is nothing called trick or shortcut in mathematics.
M and improve your skills in order to face the interview, competitive examination and various entrance test cat, gate, gre, mat, bank exam, railway exam etc. F of two or more numbers is the greatest number that divides each of them exactly. Improve your skills with free problems in hcf and lcm. The hcf and lcm are essential for fractions and later for algebra. Pdf teaching strategies in the learning of highest common factor.
One sheet is 456 inches wide and the other sheet is 120 inches wide. Express 225 as the product of powers of its prime factors. In these video, we talk about tackle various problems and when to use concept of lcm. Therefore lcm of given coprime numbers is equal to the product of the numbers. This topic wise test will help you in the actual exam in all competitive exams like cat, xat, tissnet, mhcet etc. Examples from edexcel igcse past papers on finding prime factorisations, hcf highest common factor and lcm lowest common multiple 1. Here are three examples of word problems which can be solved using the gcf or the lcm. Lcm and hcf is one of the important topics in the mba entrance exam.
Hcf and lcm problems and solutions formulas, tips and tricks. Lcm of fractions hcf of fractions hcf and lcm problems. Word problems involving greatest common factor and least. Hcf, lcm and pfd workbook collection of tes worksheets. Here you can find both objective type and multiple choice aptitude. Fully solved examples with detailed answer description. Factors, multiples, primes, prime factors, lcm and hcf. How many packages of pencils and erasers should phillip buy. By practicing these problems on lcm and hcf quiz, it becomes easy for the students to face the competitive exams. Perspectives involving the teaching and learning of hcf and lcm. M questions and answers section with explanation for various online exam preparation, various interviews, aptitude problems on h.
There are understandable, simple solutions useful for rrb alp, group d and bank jobs. In this section you can learn and practice aptitude questions based on problems on h. Improve your math knowledge with free questions in gcf and lcm. Highest common factor hcf or lowest common multiple lcm. Hcf highest common factor this is the biggest number that will divide into the given numbers.
A 286, 187 b 100, 270 c 96, 40 d 171, 189 e 120, 65 f 120, 96 6 find the lcm least common multiple of the following numbers 28, 20, 14, 4 7 helen has two sheets of cloth. How to interpret whether a question is of lcm or hcf quora. Word problems where pupils have to identify whether it is a hcf or lcm question before answering. Express 2 as the product of powers of its prime factors. The greatest common divisor can be used to find the least common multiple of two. Highest common factor hcf or lowest common multiple lcm word. What are the applications of hcf and lcm in daily life. Dec 24, 2014 after learning the concepts on lcm and hcf, we need to understand how to use these concepts in problem solving. Word problems involving highest common factor and lowest common. This is a general result, which in year 7 is best demonstrated by examples.
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