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LCM and HCF

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  1. The ratio of two numbers is 4 : 5 and their H.C.F. is 8. Then their L.C.M. is
    1. 130
    2. 140
    3. 150
    4. 160
Correct Option: D

Let the numbers be 4p and 5p.
∴ H.C.F. = p = 8
∴ Numbers = 4p = 4 × 8 = 32 and 5p = 5 × 8 = 40
∴ Their LCM = 160


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