Free ParaPro Math Questions and Answers 2 โ Questions and Answers
Question 1: What is the least common multiple (LCM) of 4 and 6?
- 8
- 12 (Correct answer)
- 18
- 24
Correct answer: 12
The LCM of 4 and 6 is 12, because 12 is the smallest number that both 4 and 6 divide evenly into (4ร3=12, 6ร2=12).
LCM method: list multiples of 4 (4, 8, 12, 16...) and multiples of 6 (6, 12, 18...). The smallest common multiple is 12. LCM is used when adding or subtracting fractions with different denominators (finding the common denominator). LCM differs from GCF (greatest common factor): GCF of 4 and 6 is 2. Knowing both and distinguishing between them is important for fraction operations.
Question 2: A rectangle has a length of 12 feet and a width of 7 feet. What is its area?
- 38 square feet
- 84 square feet (Correct answer)
- 19 square feet
- 96 square feet
Correct answer: 84 square feet
Area = length ร width = 12 ร 7 = 84 square feet.
Area measures the amount of surface a shape covers, expressed in square units. Area of a rectangle = l ร w = 12 ร 7 = 84 sq ft. This is distinct from perimeter: P = 2(l+w) = 2(12+7) = 2(19) = 38 ft. Students frequently confuse area and perimeter; a helpful distinction: perimeter is the fence around a yard (linear), area is the grass inside (square units).
Question 3: Which of the following is equivalent to 0.75?
- 1/3
- 3/5
- 3/4 (Correct answer)
- 2/3
Correct answer: 3/4
0.75 = 75/100 = 3/4. Three-fourths expressed as a decimal is 0.75.
Decimal-to-fraction conversion: 0.75 means 75 hundredths = 75/100. Simplify by dividing numerator and denominator by GCF (25): 75รท25 / 100รท25 = 3/4. Key benchmark fractions: 1/4=0.25, 1/2=0.50, 3/4=0.75, 1/3โ0.333, 2/3โ0.667, 1/5=0.20. Memorizing these benchmarks speeds calculation on the ParaPro Assessment.
Question 4: If a train travels 180 miles in 3 hours, what is its average speed?
- 60 mph (Correct answer)
- 54 mph
- 45 mph
- 90 mph
Correct answer: 60 mph
Speed = distance รท time = 180 รท 3 = 60 mph.
Using the distance-rate-time formula: Rate = Distance/Time = 180 miles / 3 hours = 60 mph. This is the average speed for the entire trip. Verification: 60 mph ร 3 hours = 180 miles. โ The formula triangle (D = RรT) can be rearranged for any unknown: R = D/T, T = D/R.
Question 5: What is 3/8 expressed as a percentage?
- 37.5% (Correct answer)
- 38%
- 32%
- 40%
Correct answer: 37.5%
3/8 = 3 รท 8 = 0.375 = 37.5%.
To convert a fraction to a percent: divide numerator by denominator (3 รท 8 = 0.375), then multiply by 100 (37.5%). Alternatively, find an equivalent fraction with denominator 100: 3/8 ร 12.5/12.5 = 37.5/100 = 37.5%. Fraction-decimal-percent conversion is a core skill on the ParaPro math section.
Question 6: A student needs to find the median of: 3, 7, 8, 10, 11, 15. What is the median?
- 8
- 9 (Correct answer)
- 10
- 8.5
Correct answer: 9
With 6 values (even count), the median is the average of the two middle values: (8 + 10) รท 2 = 18 รท 2 = 9.
Median is the middle value when data is ordered. With an odd count, it's the exact middle. With an even count (6 values here), there are two middle values โ the 3rd and 4th: 8 and 10. Median = (8+10)/2 = 9. Note: the median (9) is not one of the listed data values โ this is valid and expected with an even data count. Students often confuse median with mode (most frequent) or mean (average).
What is the least common multiple (LCM) of 4 and 6?