Time = Distance/Speed Time for A = 0.8/6 hours Time for B = 0.8/12 hours Time for C = 0.8/18 hours LCM of A, B, C = (LCM of numerator)/ (HCF of Denominator) = (LCM of 0.8,0.8,0.8)/(HCF of 6,12,18) = 0.8/6 hours 0.8/ 6hours = 10 minutes
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