SOLUTION: Khairul wants to buy a sofa set. He is offered three successive discounts of 10%, 20% and 25% and he can arrange them in any order he wants. Which order will benefit him the most?

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Khairul wants to buy a sofa set. He is offered three successive discounts of 10%, 20% and 25% and he can arrange them in any order he wants. Which order will benefit him the most?       Log On


   

Question 1129756: Khairul wants to buy a sofa set. He is offered three successive discounts of 10%, 20% and 25% and he can arrange them in any order he wants. Which order will benefit him the most? explain your answer. :)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let the original cost = +c+
arrangement #1
discounted cost = +.75%2A%28+.8%2A%28+.9c+%29%29+
+.75%2A.72c+=+.54c+
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arrangement #2
discounted price = +.9%2A%28+.75%2A%28+.8c+%29%29+
+.9%2A.6c+=+.54c+
---------------------------
The order of the discounts doesn't matter