5
Answer: DSet 1: Percentages (Advanced)
Explanation
PROBLEM
A value increased from 80 to 100. What was the percent increase?
A value increased from 80 to 100. What was the percent increase?
A.
50%
B.
20%
C.
30%
D.✓ Correct
25%
Detailed Explanation
Choice D is the best answer. Change = 100 - 80 = 20. Percent = 20/80 times 100 = 25%
Why others are wrong:
A: 50% is incorrect because it does not satisfy the equation.
B: 20% is incorrect because it does not satisfy the equation.
C: 30% is incorrect because it does not satisfy the equation.