Q. What is the square root of 144?
Solution
The square root of 144 is 12, since 12 * 12 = 144.
Correct Answer:
C
— 12
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Q. What is the sum of the first 10 natural numbers?
Solution
The sum of the first n natural numbers is given by the formula n(n + 1)/2. For n = 10, the sum is 10(10 + 1)/2 = 10 * 11 / 2 = 55.
Correct Answer:
A
— 45
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Q. What is the value of 7^2 + 3^2?
Solution
Calculating 7^2 = 49 and 3^2 = 9. Therefore, 49 + 9 = 58.
Correct Answer:
A
— 58
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