Q11. What is 1/2 + 1/4?
Correct: 3/4
1/2 + 1/4 = 3/4.
Q12. What is the perimeter of a square of side 5?
Correct: 20
Perimeter = 4 × side = 20.
Q13. What is the area of a rectangle 5 × 4?
Correct: 20
Area = length × width = 20.
Q14. What is 60% of 150?
Correct: 90
60% of 150 is 90.
Q15. What is the value of 2³?
Correct: 8
2 × 2 × 2 = 8.
Q16. What is 45 ÷ 5?
Correct: 9
45 divided by 5 equals 9.
Q17. What is the next prime after 7?
Correct: 11
The next prime after 7 is 11.
Q18. What is the sum of angles in a triangle?
Correct: 180°
Sum of angles in a triangle is 180°.
Q19. What is the value of 10²?
Correct: 100
10 × 10 = 100.
Q20. What is the diameter if radius is 7?
Correct: 14
Diameter = 2 × radius = 14.
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