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Test: Squares And Square Roots- 1 - UPSC MCQ


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10 Questions MCQ Test CSAT Preparation - Test: Squares And Square Roots- 1

Test: Squares And Square Roots- 1 for UPSC 2024 is part of CSAT Preparation preparation. The Test: Squares And Square Roots- 1 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Squares And Square Roots- 1 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Squares And Square Roots- 1 below.
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Test: Squares And Square Roots- 1 - Question 1

Which of the following is a perfect square number?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 1

The answer is 1681 because it is the only number which has it's last digit as a number which a perfect square can have . 9×9=81 the last digit is 1.

Test: Squares And Square Roots- 1 - Question 2

Which of the following would end with digit 1?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 2

Option B is correct because the unit digit of 161 is 1 and if unit digit of any digit ends with 1 the its square will also end with 1.

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Test: Squares And Square Roots- 1 - Question 3

Which of the following is not a perfect square?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 3

Option 1:
√576 = 24

Option 2:
√841 = 29

Option 3:
√778 = 27.89 It is not perfect square

Option D:
√529 = 23

Hence, the answer is option C.

Test: Squares And Square Roots- 1 - Question 4

 Sum of squares of two numbers is 145. If square root of one number is 3, find the other number.

Detailed Solution for Test: Squares And Square Roots- 1 - Question 4

Test: Squares And Square Roots- 1 - Question 5

Find the perfect square number between 30 and 40.

Detailed Solution for Test: Squares And Square Roots- 1 - Question 5

Since, 1 x 1 = 1

         2 x 2 = 4

         3 x 3 = 9

         4 x 4 = 16

         5 x 5 = 25

         6 x 6 = 36

         7 x 7 = 49

 

Thus, 36 is a perfact square number between 30 and 40.

Test: Squares And Square Roots- 1 - Question 6

Which of the following is a perfect square number?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 6

Test: Squares And Square Roots- 1 - Question 7

What is the square root of 0.053361? 

Detailed Solution for Test: Squares And Square Roots- 1 - Question 7

√0.053361
= √(5.3361 × 10(-2))
= √(5.3361) × √(10(-2))
= ±2.31 × 0.1
= ±0.231

Test: Squares And Square Roots- 1 - Question 8

What will be the number of zeros in the square of the number 100?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 8

Test: Squares And Square Roots- 1 - Question 9

How many numbers lie between square of 12 and 13

Detailed Solution for Test: Squares And Square Roots- 1 - Question 9

122 = 12*12 = 144

132 = 13*13 = 169

Now numbers are between144 and 169 are:

145, 146, 147,.............168

Total number = 24

So total numbers lies between 144 and 169 is 24

Test: Squares And Square Roots- 1 - Question 10

If 5278 is squared, then what will be at unit place?

Detailed Solution for Test: Squares And Square Roots- 1 - Question 10

When squaring the number 5278, the unit digit is determined by the square of the unit digit of the original number.

Since the unit digit of 5278 is 8, squaring it gives 8 × 8 = 64.

Therefore, the unit place digit of 5278² is 4.
Therefore correct answer : Option A

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