Exercise: Percentage
Questions for: Simple Percentage
A company has 400 employees. 30% of the employees work in the Sales Department. Within the Sales Department, 25% of the employees are Team Leads.
How many employees in the Sales Department are Team Leads?
A: 30
B: 120
C: 100
D: 220
Answer: A
1. Calculate the number of employees in the Sales Department: 30% of 400 = 0.30 * 400 = 120 employees.
2. Calculate the number of Team Leads within the Sales Department: 25% of 120 = 0.25 * 120 = 30 employees.
Therefore, there are 30 Team Leads in the Sales Department.
Why others are wrong:
A — Correct.
B — This is the total number of employees in the Sales Department (30% of 400), not the number of Team Leads.
C — This is 25% of the total number of employees (25% of 400), not 25% of the Sales Department employees.
D — This incorrectly adds the two percentages (30% + 25% = 55%) and applies it to the total number of employees.
A student completed a test consisting of 80 questions. The student answered 68 questions correctly.
What percentage of the questions did the student answer correctly?
A: 80%
B: 82.5%
C: 85%
D: 87.5%
Answer: C
1. Identify the number of questions answered correctly (part) and the total number of questions (whole).
2. Correct answers = 68.
3. Total questions = 80.
4. To find the percentage, divide the number of correct answers by the total number of questions and multiply by 100.
5. Percentage = (68 / 80) * 100.
6. Percentage = (17 / 20) * 100.
7. Percentage = 0.85 * 100 = 85%.
Why others are wrong:
A — Incorrect calculation, possibly from dividing 64 by 80.
B — Common arithmetic error during calculation, resulting in a value slightly lower than the correct answer.
D — Incorrect calculation, possibly from dividing 70 by 80.
Discuss About this Question.
A laptop was initially priced at $800. Its price increased by 15% due to new features. A month later, to clear inventory, the store offered a 10% discount on the new, increased price.
What is the final price of the laptop?
A: $840
B: $748
C: $828
D: $908
Answer: C
First, calculate the price after a 15% increase:
New price = Original price + (Original price * Percentage increase)
New price = $800 + ($800 * 0.15) = $800 + $120 = $920
Next, apply the 10% discount to this new price:
Final price = New price - (New price * Percentage discount)
Final price = $920 - ($920 * 0.10) = $920 - $92 = $828
Why others are wrong:
A — This results from assuming a net 5% increase (15% - 10%) on the original price ($800 * 1.05 = $840), or by applying the 10% discount to the original price instead of the increased price ($920 - ($800 * 0.10) = $840).
B — This results from an initial 15% decrease followed by a 10% increase ($800 * 0.85 = $680, then $680 * 1.10 = $748).
D — This results from incorrectly applying the 10% discount to the initial increase amount ($120) instead of the total increased price ($920 - ($120 * 0.10) = $920 - $12 = $908).
Discuss About this Question.
A bookstore is offering a 20% discount on all books. Emily wants to buy a book that was originally priced at $25.00.
How much will Emily pay for the book after the discount?
A: $5.00
B: $20.00
C: $22.50
D: $30.00
Answer: B
Calculate the discount amount: 20% of $25.00
20% = 20/100 = 0.20
Discount = 0.20 * $25.00 = $5.00
Subtract the discount from the original price to find the final price.
Final Price = $25.00 - $5.00 = $20.00
Why others are wrong:
A — This is the amount of the discount, not the final price Emily pays.
C — This would be the price if the discount were 10% ($25.00 - $2.50 = $22.50).
D — This would be the price if the discount amount were added instead of subtracted ($25.00 + $5.00 = $30.00).
Discuss About this Question.
A company employs 500 individuals. 30% of these employees are assigned to the Marketing department. Within the Marketing department, 60% of the staff are women.
How many women work in the Marketing department?
A: 60
B: 90
C: 150
D: 300
Answer: B
1. Calculate the number of employees in the Marketing department: 30% of 500 = (30/100) * 500 = 150 employees.
2. Calculate the number of women within the Marketing department: 60% of 150 = (60/100) * 150 = 90 women.
Why others are wrong:
A — This option results from various calculation errors, such as taking 60% of 100 or another incorrect base.
B — This is the correct number of women in the Marketing department.
C — This is the total number of employees in the Marketing department, not specifically the women within it.
D — This results from incorrectly calculating 60% of the total company employees (500) instead of 60% of the Marketing department employees (150).
Discuss About this Question.
Ad Slot (Above Pagination)
Discuss About this Question.