Multiple Choice Questions

The LCM and the HCF of the numbers 28 and 42 are in the ratio ........

Quantitative Aptitude (CGL) LCM, HCF

The LCM and the HCF of the numbers 28 and 42 are in the ratio:

2: 7

6:1

1:6

1:1

Correct option 3: 1:6

Solution

28 = 2² x7

42= 2x3x7

LCM of 28 and 42 = 2x7=14

Therefore ratio of HCF and LCM = 14:84=1: 16

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