GATB Arithmetic Reasoning 2 — Questions and Answers
Question 1: A store marks up a product by 25%, then offers a 10% discount. If the cost price is $80, what is the final selling price?
- $85
- $90 (Correct answer)
- $95
- $100
Correct answer: $90
$80 × 1.25 = $100 after markup; $100 × 0.90 = $90 after the discount.
Question 2: Tom can paint a fence in 4 hours and Jerry can paint the same fence in 6 hours. How long will it take them working together?
- 2 hours
- 2.4 hours (Correct answer)
- 3 hours
- 5 hours
Correct answer: 2.4 hours
Combined rate = 1/4 + 1/6 = 5/12 fence per hour; time = 12/5 = 2.4 hours.
Question 3: A bag contains 5 red balls and 3 blue balls. What percentage of the balls are red?
- 37.5%
- 50%
- 62.5% (Correct answer)
- 75%
Correct answer: 62.5%
5 red out of 8 total: 5/8 × 100 = 62.5%.
Question 4: A rectangular room is 12 feet long and 9 feet wide. What is the area of the room in square feet?
- 42 sq ft
- 84 sq ft
- 108 sq ft (Correct answer)
- 144 sq ft
Correct answer: 108 sq ft
Area = length × width = 12 × 9 = 108 square feet.
Question 5: A car purchased for $12,000 depreciates 15% per year. What is its value after one year?
- $9,600
- $10,200 (Correct answer)
- $10,800
- $11,400
Correct answer: $10,200
$12,000 × (1 − 0.15) = $12,000 × 0.85 = $10,200.
Question 6: The average of 5 numbers is 18. What is their total sum?
- 80
- 85
- 90 (Correct answer)
- 95
Correct answer: 90
Sum = average × count = 18 × 5 = 90.
Question 7: An item costs $50 and an 8% sales tax is added. What is the total cost?
- $53.00
- $54.00 (Correct answer)
- $54.50
- $55.00
Correct answer: $54.00
Tax = $50 × 0.08 = $4; total = $50 + $4 = $54.00.
GATB Arithmetic Reasoning 2
A store marks up a product by 25%, then offers a 10% discount.
If the cost price is $80, what is the final selling price?