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Chapter 2 Worksheet 7 | Factors and Multiples | Class-6 DAV Secondary Mathematics
Unit 2 Worksheet 7 || Factors and Multiples
1. For each of the following pairs of numbers, verify that product of numbers is equal to the product of their HCF and LCM. (a) 10, 15 (b) 35, 40 (c) 32, 48
2. Find HCF and LCM by using the property in Question no. 1. (a) 27, 90 (b) 145, 232 (c) 117, 221
3. Can two numbers have 16 as HCF and 380 as LCM? Give reasons.
4. The HCF of two numbers is 16 and product of numbers Is 3072. Find their LCM.
5. The LCM and HCF of two numbers are 180 and 6 respectively. If one of the number Is 30, find the other.
6. LCM of two numbers 160 and 352 is 1760. Find their HCF.
7. Write ‘True’ or ‘False’ for the following statements.
(a) LCM of two numbers is a factor of their HCF.
(b) Product of three numbers is equal to the product of their HCF and LCM.
(c) HCF of given numbers is always a factor of their LCM.
(d) LCM of given numbers cannot be smaller than the numbers.
(e) LCM of co-prime numbers is equal to their product.
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