10621. Select the best answer: What is the square root of 81?
✅ B. 9
9 × 9 = 81. Read more
Mathematics – Page 532
10622. Select the best answer: What is 15% of 200?
✅ B. 30
15% of 200 is 0.15 × 200 = 30. Read more
10623. Select the best answer: What is 12 × 8?
✅ D. 96
12 multiplied by 8 equals 96. Read more
10624. Select the best answer: What is 144 ÷ 12?
✅ B. 12
144 divided by 12 equals 12. Read more
10625. Which of the following is correct? What is 0.5 expressed as a fraction?
✅ A. 2-Jan
0.5 equals 5/10, which simplifies to 1/2. Read more
10626. Which of the following is correct? If a shirt costs 1000 and is discounted by 10%, what is the sale price?
✅ A. 900
A 10% discount is 100, leaving a sale price of 900. Read more
10627. Which of the following is correct? What is the least common multiple of 4 and 6?
✅ A. 12
12 is the smallest positive number divisible by both 4 and 6. Read more
10628. Which of the following is correct? What is the greatest common divisor of 12 and 18?
✅ A. 6
The greatest number dividing both 12 and 18 is 6. Read more
10629. Which of the following is correct? How many sides does a hexagon have?
✅ A. 6
A hexagon has six sides. Read more
10630. Which of the following is correct? What is the value of 5³?
✅ D. 125
5 × 5 × 5 = 125. Read more
10631. Which of the following is correct? What is the sum of the angles in a triangle?
✅ A. 180°
The interior angles of a triangle sum to 180 degrees. Read more
10632. Which of the following is correct? If x + 7 = 12, what is x?
✅ A. 5
Subtracting 7 from both sides gives x = 5. Read more
10633. Which of the following is correct? What is the average of 10, 20 and 30?
✅ B. 20
(10 + 20 + 30) ÷ 3 = 20. Read more
10634. Which of the following is correct? What is 3/4 as a decimal?
✅ A. 0.75
3 divided by 4 equals 0.75. Read more
10635. Which of the following is correct? What is 25% expressed as a fraction in simplest form?
✅ A. 4-Jan
25/100 simplifies to 1/4. Read more
10636. Which of the following is correct? What is the next number in 2, 4, 6, 8, …?
✅ D. 10
The sequence increases by 2. Read more
10637. Which of the following is correct? What is the area of a rectangle 8 cm long and 3 cm wide?
✅ B. 24 cm²
Area = length × width = 8 × 3 = 24 cm². Read more
10638. Which of the following is correct? What is the value of 2 + 3 × 4?
✅ D. 14
Multiplication is performed before addition: 2 + 12 = 14. Read more
10639. Which of the following is correct? What is the perimeter of a square with side 5 cm?
✅ D. 20 cm
A square has four equal sides, so 4 × 5 = 20 cm. Read more
10640. Which of the following is correct? What is 7²?
✅ C. 49
7 squared is 49. Read more