Q. If a number is increased by 20% and then decreased by 20%, net change is:
✅ Correct Answer: (C)
4% decrease
Explanation: Net change = a − a²/100 = 20 − 4 = 16%? (Correct formula: -4% decrease)
Explanation by: Krishna Sharma
Net change = a − a²/100 = 20 − 4 = 16%? (Correct formula: -4% decrease)