11. Find the LCM and HCF of 6 and 20 by the prime factorisation
method.
12. What is the smallest number that when divided by three numbers
such as 35, 56 and 91 leaves remainder 7 in each case?
13. Graph the following quadratic equations and state their nature of
solutions.
(i) x2 – 9x + 20 = 0
(ii) x2 – 4x + 4 = 0
(iii) x2 + x + 7 = 0
14. Determine the range and domains of the relation R defined by
R = {(x - 1), (x + 2) : x ∈ (2, 3, 4, 5)}
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1
Step-by-step explanation:
11. the LCM of 6 and 20 is
2*3*10=60
the HCF of 6 and 20 is
6=2*3
20=2*2*5
in both there are similarities the multiply of 2
the HCF is 2
Answered by
1
Answer:
LCM=60
HCF=2
Step-by-step explanation:
The LCM of 6 and 20 is 60
the HCF of 6,20 is 2
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