Q31. What is the value of 3² + 4²?
Correct: 25
9 + 16 = 25.
Q32. What is 1 kilometer in meters?
Correct: 1000
1 km = 1000 meters.
Q33. What is the value of sin 90°?
Correct: 1
sin 90° = 1.
Q34. What is the value of cos 0°?
Correct: 1
cos 0° = 1.
Q35. What is 2/3 of 90?
Correct: 60
2/3 × 90 = 60.
Q36. What is the value of 9³?
Correct: 243
9 × 9 × 9 = 729.
Q37. What is the median of 2,4,6?
Correct: 4
Middle value is 4.
Q38. What is the value of 5 + 3 × 2?
Correct: 11
3×2=6, 5+6=11.
Q39. What is the value of 64 ÷ 4?
Correct: 16
64 ÷ 4 = 16.
Q40. What is the value of 0²?
Correct: 0
0 × 0 = 0.
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