Correct option is C
Given:
Loss percentage = 20%
Formula Used:
Selling Price (SP) = Cost Price (CP) - Loss
Loss = (Loss% / 100) * CP
Solution:
Let the cost price (CP) be 100 units.
Loss = 20% of CP = 20 units
Therefore, Selling Price (SP) = CP - Loss = 100 - 20 = 80 units
Thus, the ratio of Cost Price (CP) to Selling Price (SP) is 100:80 or 5:4.