ParaPro Core Plus (Math Version 3 — Questions and Answers
Question 1: A classroom has 24 students. If 3/8 of them scored above 90% on a test, how many students scored above 90%?
- 6
- 8
- 9 (Correct answer)
- 12
Correct answer: 9
3/8 × 24 = 9 students scored above 90%.
Question 2: Which of the following is equivalent to 2³ × 2⁴?
- 2⁷ (Correct answer)
- 4⁷
- 2¹²
- 6⁷
Correct answer: 2⁷
When multiplying powers with the same base, add the exponents: 2³ × 2⁴ = 2^(3+4) = 2⁷.
Question 3: A rectangle has a length of 15 cm and a width of 8 cm. What is its perimeter?
- 23 cm
- 46 cm (Correct answer)
- 120 cm
- 56 cm
Correct answer: 46 cm
Perimeter = 2(length + width) = 2(15 + 8) = 2(23) = 46 cm.
Question 4: If y = 3x − 5 and x = 4, what is the value of y?
- 7 (Correct answer)
- 12
- 17
- 9
Correct answer: 7
Substitute x = 4: y = 3(4) − 5 = 12 − 5 = 7.
Question 5: A store marks up items by 25%. If an item costs $48, what is the selling price?
- $52
- $58
- $60 (Correct answer)
- $72
Correct answer: $60
Markup = 25% × $48 = $12; selling price = $48 + $12 = $60.
Question 6: What is the least common multiple (LCM) of 6 and 10?
- 16
- 20
- 30 (Correct answer)
- 60
Correct answer: 30
The LCM of 6 and 10 is 30, as it is the smallest number divisible by both.
Question 7: A number line shows points at −3, 0, and 4. What is the distance between −3 and 4?
- 1
- 3
- 4
- 7 (Correct answer)
Correct answer: 7
Distance = |4 − (−3)| = |4 + 3| = 7.
ParaPro Core Plus (Math Version 3
A classroom has 24 students.
If 3/8 of them scored above 90% on a test, how many students scored above 90%?