10821. Which option correctly answers this question: what is the sum of the angles in a triangle?
✅ D. 180°
The interior angles of a triangle sum to 180 degrees. Read more
Mathematics – Page 542
10822. Which option correctly answers this question: if x + 7 = 12, what is x?
✅ D. 5
Subtracting 7 from both sides gives x = 5. Read more
10823. Which option correctly answers this question: what is 25% expressed as a fraction in simplest form?
✅ B. 4-Jan
25/100 simplifies to 1/4. Read more
10824. Which option correctly answers this question: what is the average of 10, 20 and 30?
✅ D. 20
(10 + 20 + 30) ÷ 3 = 20. Read more
10825. Which option correctly answers this question: what is 3/4 as a decimal?
✅ B. 0.75
3 divided by 4 equals 0.75. Read more
10826. Which option correctly answers this question: what is the next number in 2, 4, 6, 8, …?
✅ C. 10
The sequence increases by 2. Read more
10827. Which option correctly answers this question: 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
10828. Which option correctly answers this question: what is the area of a rectangle 8 cm long and 3 cm wide?
✅ C. 24 cm²
Area = length × width = 8 × 3 = 24 cm². Read more
10829. Which option correctly answers this question: what is the value of 2 + 3 × 4?
✅ C. 14
Multiplication is performed before addition: 2 + 12 = 14. Read more
10830. Which option correctly answers this question: what is 7²?
✅ B. 49
7 squared is 49. Read more
10831. Which option correctly answers this question: what is the square root of 81?
✅ A. 9
9 × 9 = 81. Read more
10832. Which option correctly answers this question: what is 144 ÷ 12?
✅ A. 12
144 divided by 12 equals 12. Read more
10833. Which option correctly answers this question: what is 15% of 200?
✅ C. 30
15% of 200 is 0.15 × 200 = 30. Read more
10834. Which option correctly answers this question: what is 12 × 8?
✅ B. 96
12 multiplied by 8 equals 96. Read more
10835. What is 0.5 expressed as a fraction — select the correct answer.
✅ B. 2-Jan
0.5 equals 5/10, which simplifies to 1/2. Read more
10836. If a shirt costs 1000 and is discounted by 10%, what is the sale price — select the correct answer.
✅ D. 900
A 10% discount is 100, leaving a sale price of 900. Read more
10837. What is the least common multiple of 4 and 6 — select the correct answer.
✅ B. 12
12 is the smallest positive number divisible by both 4 and 6. Read more
10838. How many sides does a hexagon have — select the correct answer.
✅ D. 6
A hexagon has six sides. Read more
10839. What is the greatest common divisor of 12 and 18 — select the correct answer.
✅ B. 6
The greatest number dividing both 12 and 18 is 6. Read more
10840. What is the sum of the angles in a triangle — select the correct answer.
✅ D. 180°
The interior angles of a triangle sum to 180 degrees. Read more