HCF of 3 numbers is 6 and LCM is 630. If two numbers be 18 and 42, the – McqOptions

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1.	HCF of 3 numbers is 6 and LCM is 630. If two numbers be 18 and 42, then 3rd number will be
A.	30
B.	20
C.	24
D.	28
Answer» B. 20

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