Question : If three numbers are in the ratio of 1 : 3 : 7, and their LCM is 336, then their HCF is:
Option 1: 16
Option 2: 18
Option 3: 10
Option 4: 12
Correct Answer: 16
Solution :
Three numbers are in the ratio of
Let the numbers be
Their LCM =
According to the question,
So, the numbers are 16, 16 × 3 = 48, 16 × 7 = 112
Hence, the correct answer is 16.