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  1. The LCM and the HCF of the numbers 28 and 42 are in the ratio :
    1. 6 : 1
    2. 2 : 3
    3. 3 : 2
    4. 7 : 2
Correct Option: A

L.C.M. of 28 and 42

L.C.M. of 28 and 42 = 2 × 2 × 7 × 3 = 84
H.C. F. of 28 and 42

∴ H.C. F = 14

Required ratio =
84
 = 6 : 1
14


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