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Showing 41–60 of 200 MCQs
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Solved Questions
200 Questions
41
Evaluate: sqrt(144) + 13.
Correct Option
Explanation
The square root of 144 is 12. Addition: 12 + 13 = 25.
42
Simplify: sqrt(225) - sqrt(81).
Correct Option
Explanation
sqrt(225) = 15 and sqrt(81) = 9. Subtraction: 15 - 9 = 6.
43
Calculate: 5^2 + 4^2 - 1.
Correct Option
Explanation
Calculate squares: 5^2 = 25 and 4^2 = 16. Addition: 25 + 16 = 41. Subtraction: 41 - 1 = 40.
44
Find the value of: 10^2 / sqrt(25).
Correct Option
Explanation
Calculate power and root: 10^2 = 100 and sqrt(25) = 5. Division: 100 / 5 = 20.
45
Evaluate: sqrt(64) * sqrt(16).
Correct Option
Explanation
sqrt(64) = 8 and sqrt(16) = 4. Multiplication: 8 * 4 = 32.
Correct Option
Explanation
Calculate cubes: 3^3 = 27 and 2^3 = 8. Addition: 27 + 8 = 35.
47
Calculate: sqrt(400) / 4 + 5.
Correct Option
Explanation
sqrt(400) = 20. Division: 20 / 4 = 5. Addition: 5 + 5 = 10.
48
Evaluate: 4^3 - sqrt(100).
Correct Option
Explanation
Calculate cube and root: 4^3 = 64 and sqrt(100) = 10. Subtraction: 64 - 10 = 54.
49
Find the value of: sqrt(121) * 2 - 10.
Correct Option
Explanation
sqrt(121) = 11. Multiplication: 11 * 2 = 22. Subtraction: 22 - 10 = 12.
50
Simplify: 6^2 / sqrt(36).
Correct Option
Explanation
6^2 = 36 and sqrt(36) = 6. Division: 36 / 6 = 6.
51
Find the approximate value of: 14.98 + 25.02.
Correct Option
Explanation
Approximate the values to the nearest integers: 15 + 25 = 40.
52
What approximate value should come in place of the question mark: 39.99 - 19.95 = ?
Correct Option
Explanation
Round 39.99 to 40 and 19.95 to 20. Subtraction: 40 - 20 = 20.
53
Find the approximate value of: 10.05 * 4.98.
Correct Option
Explanation
Round 10.05 to 10 and 4.98 to 5. Multiplication: 10 * 5 = 50.
54
What approximate value should come in place of x: 49.95 / 5.01 = x.
Correct Option
Explanation
Round off the decimals: 50 / 5 = 10.
55
Approximate the value of: 99.99 + 50.01 - 24.95.
Correct Option
Explanation
Round the numbers: 100 + 50 - 25. Then calculate: 150 - 25 = 125.
56
Find the approximate value: 29.98 * 2.01 + 10.05.
Correct Option
Explanation
Round to nearest integers: 30 * 2 + 10. According to BODMAS: 60 + 10 = 70.
57
What approximate value should come in place of the question mark: 119.95 / 3.99 - 15.01 = ?
Correct Option
Explanation
Round the numbers: 120 / 4 - 15. Division first: 30 - 15 = 15.
58
Approximate: 8.05 * 7.95 + 35.98.
Correct Option
Explanation
Round to nearest integers: 8 * 8 + 36. Multiplication: 64 + 36 = 100.
59
Find the approximate value: 150.01 / 14.99 * 2.02.
Correct Option
Explanation
Round off: 150 / 15 * 2. Division: 10 * 2 = 20.
60
What approximate value should come in place of x: 45.05 + 54.95 - 20.02 = x.
Correct Option
Explanation
Round the numbers: 45 + 55 - 20. Addition and Subtraction: 100 - 20 = 80.
