Mr Tan wants to buy a laptop from a NTUC FairPrice electronics sale. The original price of the laptop is $2,000. The laptop is first given a 15% discount, and then 9% GST is charged on the discounted price. How much does Mr Tan pay for the laptop in the end?
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Worked Solution
Step 1: Find the discounted price after 15% discount.
Discount = 15% of $2,000 = 0.15 × $2,000 = $300
Discounted price = $2,000 − $300 = $1,700
Alternatively: Discounted price = $2,000 × 0.85 = $1,700
Step 2: Add 9% GST on the discounted price.
GST = 9% of $1,700 = 0.09 × $1,700 = $153
Final price = $1,700 + $153 = $1,853
Alternatively: Final price = $1,700 × 1.09 = $1,853
Mr Tan pays $1,853 for the laptop.
Correct answer: $1,853
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