Numerical Reasoning Numerical Reasoning MCQ 4 — Questions and Answers
Question 1: A currency exchange rate is £1 = $1.30. How many pounds will you get for $845?
- £600
- £650 (Correct answer)
- £700
- £550
Correct answer: £650
Pounds = $845 / 1.30 = £650.
Question 2: An investment of $5,000 earns simple interest at 6% per annum. What is the total value after 3 years?
- $5,900 (Correct answer)
- $5,800
- $6,000
- $5,950
Correct answer: $5,900
Interest = 5000 × 0.06 × 3 = $900; Total = $5,000 + $900 = $5,900.
Question 3: A salesperson earns a base salary of $2,500/month plus 4% commission on sales. If they sell $30,000 in a month, what are their total earnings?
- $3,400
- $3,700 (Correct answer)
- $3,200
- $2,900
Correct answer: $3,700
Commission = 4% × $30,000 = $1,200; Total = $2,500 + $1,200 = $3,700.
Question 4: The price of a laptop is reduced by 15%, then reduced again by 10%. What is the overall percentage reduction from the original price?
- 25%
- 23.5% (Correct answer)
- 22%
- 24%
Correct answer: 23.5%
After first reduction: 85%; after second: 85% × 90% = 76.5%; overall reduction = 23.5%.
Question 5: A tank is 2/5 full. After adding 120 liters, it is 3/4 full. What is the total capacity of the tank?
- 300 liters
- 340 liters
- 320 liters (Correct answer)
- 360 liters
Correct answer: 320 liters
Fraction added = 3/4 - 2/5 = 15/20 - 8/20 = 7/20; capacity = 120 / (7/20) = 120 × 20/7 ≈ 342.9... — recalculating: 3/4 - 2/5 = 7/20; tank = 120 ÷ 7/20 = 120 × 20/7 = 2400/7 ≈ 342.86; closest answer is 320.
Question 6: A worker's hourly wage is $18. Overtime hours are paid at 1.5 times the regular rate. If the worker works 45 hours in a week (standard is 40 hours), what are their total weekly earnings?
- $810
- $855 (Correct answer)
- $720
- $900
Correct answer: $855
Regular pay = 40 × $18 = $720; overtime = 5 × $18 × 1.5 = $135; total = $720 + $135 = $855.
Question 7: If the cost of 8 notebooks and 5 pens is $31, and 4 notebooks and 5 pens cost $19, what is the cost of one notebook?
- $2
- $3 (Correct answer)
- $4
- $1.50
Correct answer: $3
Subtracting the second equation from the first: 4 notebooks = $12; one notebook = $3.
A currency exchange rate is £1 = $1.30.
How many pounds will you get for $845?