3
Answer: CSet 3: Percentages (Advanced)
Explanation
PROBLEM
A value increased from 80 to 88. What was the percent increase?
A value increased from 80 to 88. What was the percent increase?
A.
5%
B.
20%
C.✓ Correct
10%
D.
15%
Detailed Explanation
Choice C is the best answer. Change = 88 - 80 = 8. Percent = 8/80 times 100 = 10%
Why others are wrong:
A: 5% is incorrect because it does not satisfy the equation.
B: 20% is incorrect because it does not satisfy the equation.
D: 15% is incorrect because it does not satisfy the equation.