Question
Charan went to purchase an Apple iPhone, the shopkeeper
told him to pay 30% GST, if he asked the bill. Charan manages to get the discount of 10% on the actual selling price of the mobile and he paid the shopkeeper Rs. 36900 without GST. Besides he manages to avoid to pay 30% GST on the already discounted price, what is the amount of discount that he has gotten?Solution
Let the cost Price be Rs. 100 Selling Price (with GST) = 130 New Selling Price = 100 -10 = 90 ∴ Effective Discount = 130 – 90 = 40 So, SP of 90 = Discount 40 And, Selling Price of 36900 ⟶ Discount =  40/90×36900 = 16400
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