NBT Quantitative Literacy 2 — Questions and Answers
Question 1: A bar chart shows monthly rainfall: Jan 80mm, Feb 60mm, Mar 100mm, Apr 40mm. What is the average monthly rainfall over these four months?
- 70mm (Correct answer)
- 75mm
- 80mm
- 85mm
Correct answer: 70mm
Average = (80 + 60 + 100 + 40) / 4 = 280 / 4 = 70mm.
Question 2: A store sells a jacket for $120 after applying a 25% discount. What was the original price?
- $160 (Correct answer)
- $145
- $150
- $170
Correct answer: $160
The sale price is 75% of the original, so original = $120 / 0.75 = $160.
Question 3: A car travels 360 km using 30 liters of fuel. How many liters are needed to travel 480 km at the same rate?
- 40 liters (Correct answer)
- 36 liters
- 42 liters
- 48 liters
Correct answer: 40 liters
Rate = 360/30 = 12 km/L; liters needed = 480/12 = 40 liters.
Question 4: A pie chart shows 40% of students prefer science and 35% prefer math. What percentage prefer neither?
- 25% (Correct answer)
- 30%
- 20%
- 15%
Correct answer: 25%
100% − 40% − 35% = 25% prefer neither subject.
Question 5: A recipe uses 1.5 cups of flour for 12 cookies. How many cups are needed for 40 cookies?
- 5 cups (Correct answer)
- 4.5 cups
- 6 cups
- 5.5 cups
Correct answer: 5 cups
Proportion: 1.5/12 = x/40 → x = 1.5 × 40/12 = 5 cups.
Question 6: A line graph shows a population growing from 20,000 in 2010 to 26,000 in 2020. What is the percentage increase?
- 30% (Correct answer)
- 25%
- 20%
- 35%
Correct answer: 30%
Increase = 6,000; percentage = 6,000/20,000 × 100 = 30%.
Question 7: A worker earns $18 per hour and works 45 hours in a week. The first 40 hours are regular pay; beyond 40 hours is paid at 1.5× the regular rate. What is the total weekly pay?
- $855 (Correct answer)
- $810
- $900
- $720
Correct answer: $855
Regular: 40 × $18 = $720; overtime: 5 × $27 = $135; total = $720 + $135 = $855.
NBT Quantitative Literacy 2
A bar chart shows monthly rainfall: Jan 80mm, Feb 60mm, Mar 100mm, Apr 40mm.
What is the average monthly rainfall over these four months?