Engineering Board Exam Reviewer · Percentage & Ratio Problems · medium
The price of a commodity rises by 20% and then falls by 20%. What is the net percent change in price?
- 0%
- 4%
- -2%
- -4%
Answer
D. -4%
Solution
The final price is 1.20(0.80)=0.96 of the original, a net change of -4%.
More Percentage & Ratio Problems questions
- In a class of 40 students, the ratio of boys to girls is 3:5. How many girls are in the class?
- A shirt marked P800 is sold at a 15% discount. What is the selling price?
- Asyong spent 10% of his salary on transportation expenses, 20% of his salary on food. He then spent 30% of the rest of his salary on…
- The ratio of men to women is 6:4. 60% of the men and 40% of the women take lunch in the canteen. What percent of the class take lunch in…
- A shipment of items is divided into two portions such that the difference between the portions is one-half of their average. Find the…
- If A:B=2:3 and B:C=4:5, find A:B:C.
- A merchant marks goods 40% above cost and then gives a 10% discount. What is the percent profit based on cost?