HOTS Mathematics Primary 6 Percentage

Mr Tan sold a car for $54 000, making a 20% profit on what he paid for it. He then bought a second car at a 10% discount off its marked price. The discount he received was equal to the profit he made on the first car. What was the marked price of the second car?

A $48 600
B $81 000
C $90 000
D $108 000
Show Worked Solution

Worked Solution

Step 1: Find the cost price of the first car. Selling price = $54 000 at 20% profit. Cost price = $54 000 ÷ 1.20 = $45 000 Step 2: Find the profit on the first car. Profit = $54 000 − $45 000 = $9 000 Step 3: Set up the equation for the second car. The discount on the second car = profit on first car = $9 000. Discount = 10% of marked price. 10% × marked price = $9 000 Step 4: Find the marked price of the second car. Marked price = $9 000 ÷ 0.10 = $90 000 Answer: $90 000

Correct answer: $90 000

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