Suppose the cost of a car increases by 10% and then decreases by 20%. Due to some reason again the cost increases by 15%. The resulting cost percentage increase or decrease is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1.2% increase.
Let the original cost of the car = 100
Final price = 100 × (110/100) × (80/100) × (115/100) = 101.2
Net increase = 101.2 - 100 = 1.2%