Consider a chain discount of 20/15/10 instead of the single discount. What would the net price equivalent rate be?

Question
Analysis
asked 2021-01-06
Consider a chain discount of 20/15/10 instead of the single discount. What would the net price equivalent rate be?

Answers (1)

2021-01-07
Let the price be x. The chain the gives:
(1st) 1x-0.2x=0.8x
(2nd) (1-0.15)(1x-0.2x)=0.68x
(3rd) (1-0.1)(0.68x)=0.612x
The net price equivalent rate is 0.612=61.2% of the original price.
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