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Finding Square Root through Prime Factorisation

Write the cor...

Question

Question 1

Write the correct answer from the given four options.

196 is the square of

a) 11
b) 12
c) 14
d) 16

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Solution

Square of 11 $= 11 \times 11 = 121$
Square of 12 $= 12 \times 12 = 144$
Square of 14 $= 14 \times 14 = 196$
Clearly, 196 is the square of 14.

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Question 23

Write the correct answer from the given four options.

The value of $\sqrt{248 + \sqrt{52 + \sqrt{144}}}$ is

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Question 16

Out of the four options, only one is correct. Write the correct answer.

The length of a side of a square is given as 2x + 3. Which expression represents the perimeter of the square?

(a) 2x+16
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Question 14

Out of the four options, only one is correct. Write the correct answer.

The value of $3 x^{2} - 5 x + 3,$ when x = 1 is

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Question 16

Write the correct answer from the given four options.

Which among $43^{2}$ , $67^{2}$ , $52^{2}$ , $59^{2}$ would end with digit 1?

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Question 16

Out of the given four options, only one is correct. Write the correct answer.

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