Correct option is C
Given:
HCF = 8
LCM = 40
Formula Used:
The product of the HCF and LCM of two numbers is equal to the product of the two numbers.
Solution:
Product of the two numbers = HCF × LCM = 8 × 40 = 320
Therefore, the product of the numbers whose HCF and LCM are 8 and 40 respectively is 320.