Mathematics · Percentage and Discount
Students in a class are solving questions based on percentage discounts. One question requires the students to calculate the total cost of two bikes, with an 8% discount on each bike. One of the groups calculates the combined price of the two bikes and then deducts 16% from the total. The method used by this group is:
- 1Incorrect, since they should have deducted 16% from the average cost of the bikes.
- 2Incorrect, since they have deducted a 16% discount from the total instead of 8%.✓
- 3An alternate correct strategy to solve the question efficiently.
- 4Correct and is the only mathematically valid way to calculate the discount.
Correct answer
Incorrect, since they have deducted a 16% discount from the total instead of 8%.
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