Correct option is B
Given:
Ratio of HCF : LCM = 1 : 30
Difference between LCM and HCF = 493
Solution:
Let HCF = x, then LCM = 30x
Given:
30x - x = 493
29x = 493
x = 17
So,
HCF = 17
LCM = 30 × 17 = 510
Product = 17 × 510 = 8670
The product of the LCM and HCF is 8670.