Squares and Square Roots Test

Result

Squares and Square Roots Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following numbers is not a perfect square?

A
36

B
81

C
37

D
Both (A) and (B)

E
Answer required

Solution

As we know that all the perfect square number ends with $$1,4,9,6,5,00$$
So, $$37$$ is not a perfect square because it ends with $$7$$.
Question 2
1 / -0

What will be the unit digit of the square of 3853?

A
3

B
1

C
7

D
9

Solution

Unit digit of $$3853$$ $$\rightarrow$$ $$3$$
$$3\times3$$ $$\rightarrow$$ $$9$$
Hence, unit digit of $$3853\times3853$$ $$\rightarrow$$ $$9$$
Hence, option D is correct.
Question 3
1 / -0

What will be the unit digit of the square of the number $$81$$?

A
5

B
7

C
1

D
3

Solution

Unit digit of $$81$$ $$\rightarrow$$ $$1$$
$$1\times1$$ $$\rightarrow$$ $$1$$
Hence, Unit digit of $$81\times81$$ $$\rightarrow$$ $$1$$
Hence, Option C is correct.
Question 4
1 / -0

What will be the unit digit of the square of 12796?

A
6

B
2

C
1

D
4

Solution

Unit digit of $$12796$$ $$\rightarrow$$ $$6$$
$$6\times6$$ $$\rightarrow$$ $$36$$
Hence, Unit digit of $$12796\times12796$$ $$\rightarrow$$ $$6$$
Hence, Option A is correct.
Question 5
1 / -0

What will be the unit digit of the square of 52698?

A
4

B
2

C
9

D
6

Solution

Unit digit of $$52698$$ $$\rightarrow$$ $$8$$
$$8\times8$$ $$\rightarrow$$ $$64$$
Hence, Unit digit of $$52698\times52698$$ $$\rightarrow$$ $$4$$
Hence, Option A is correct.
Question 6
1 / -0

What will be the unit digit of the square of 272?

A
1

B
4

C
3

D
8

Solution

Unit digit of $$272$$ $$\rightarrow$$ $$2$$
$$2\times2$$ $$\rightarrow$$ $$4$$
Hence, Unit digit of $$272\times272$$ $$\rightarrow$$ $$4$$
Hence, Option B is correct.
Question 7
1 / -0

What will be the unit digit of the square of 26837?

A
4

B
2

C
9

D
6

Solution

Unit digit of $$26837$$ $$\rightarrow$$ $$7$$
$$7\times7$$ $$\rightarrow$$ $$49$$
Hence, unit digit of $$26837\times26837$$ $$\rightarrow$$ $$9$$
Hence, option C is correct.
Question 8
1 / -0

What will be the unit digit of the square of 99880?

A
2

B
4

C
6

D
None of these

Solution

Unit digit of $$99880$$ $$\rightarrow$$ $$0$$
$$0\times0$$ $$\rightarrow$$ $$0$$
Hence, Unit digit of $$99880\times99880$$ $$\rightarrow$$ $$0$$
Hence, Option D is correct.
Question 9
1 / -0

What will be the unit digit of the square of 1234?

A
3

B
4

C
5

D
6

Solution

Unit digit of $$1234$$ $$\rightarrow$$ $$4$$
$$4\times4$$ $$\rightarrow$$ $$16$$
Hence, unit digit of $$1234\times1234$$ $$\rightarrow$$ $$6$$
Hence, option D is correct.
Question 10
1 / -0

The square of which of the following would be odd number ?

A
$$512$$

B
$$320$$

C
$$431$$

D
$$220$$

Solution

The last digit of the square of $$431$$ is $$1 (1 \times 1= 1),$$ which forms an odd number
Also as we know that the square of any even digit will also be the even and square of any odd digit will also be the odd number
Hence, C will be correct answer.

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Re-Attempt Weekly Quiz Competition

Squares and Square Roots Test - 18

Result

Squares and Square Roots Test - 18

Score

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Rank

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SHARING IS CARING

Question 1

36

81

37

Both (A) and (B)

Answer required

Solution

Question 2

3

1

7

9

Solution

Question 3

5

7

1

3

Solution

Question 4

6

2

1

4

Solution

Question 5

4

2

9

6

Solution

Question 6

1

4

3

8

Solution

Question 7

4

2

9

6

Solution

Question 8

2

4

6

None of these

Solution

Question 9

3

4

5

6

Solution

Question 10

$$512$$

$$320$$

$$431$$

$$220$$

Solution

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