The ratio of the selling price to the cost price of a computer is 7:5. What is the profit percentage?
Show answer & explanation
Correct answer: C
Explanation
the correct answer is option 3 i.e 40%
The ratio of the selling price to the cost price of a computer is 7 : 5.
Let's assume the selling price and the cost price of a computer are 7y and 5y.
Profit percentage = (selling price - cost price/cost price ) × 100
= (7y - 5y/5y) × 100
= (2y/5y) × 100
= 40%