Integers Test

Result

Integers Test - 38

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Weekly Quiz Competition

Question 1
1 / -0

If the product of two integers is $$72$$ and one of them is $$-9$$, then the other integer is.

A
$$-8$$

B
$$8$$

C
$$81$$

D
$$63$$

Solution

Let, the other integer is $$x$$.
According to the problem:
$$x\times (-9)=72$$
or, $$x=-\dfrac{72}{9}=-8$$.
Question 2
1 / -0

On subtracting $$- 7$$ from $$-14$$, we get.

A
$$-21$$

B
$$-7$$

C
$$-14$$

D
$$21$$

Solution

According to question, $$-14 -(-7)$$
$$=-14 + 7$$
$$=- 7$$
Question 3
1 / -0

The additive inverse of $$17 $$ is

A
$$-17$$

B
$$17$$

C
$$\dfrac {1}{17}$$

D
$$-\dfrac {1}{17}$$

Solution

The additive inverse of $$17$$ is $$-17$$ since $$17+(-17)=(-17)+17=0$$. Where $$0$$ is the additive identity.
Question 4
1 / -0

Which of the following is a true statement?

A
$$-4 > -3$$

B
$$-4 < -3$$

C
$$-4$$ and $$-3$$ are non-comparable

D
None

Solution

$$-4$$ lies on left hand side of $$-3$$ on the number line.
Hence $$-4$$ is less than $$-3$$
$$\therefore -4 < -3$$
Option $$(B)$$ is the correct answer
Question 5
1 / -0

$$4$$ more than $$-5$$ is

A
$$9$$

B
$$-9$$

C
$$-1$$

D
$$1$$

Solution

$$4$$ more than $$-5$$ indicates
$$-5 + 4 = -1$$
$$4$$ more than $$-5$$ is $$-1$$
Option $$(C)$$ is the correct answer
Question 6
1 / -0

$$49 + (-27) =?$$

A
$$-73$$

B
$$73$$

C
$$22$$

D
None of these

Solution

$$(49) + (-27) $$
$$= 49 – 27$$
$$=22$$
Option $$(C)$$ is the correct answer
Question 7
1 / -0

$$-12- (-5) = ?$$

A
$$-17$$

B
$$-7$$

C
$$7$$

D
None of these

Solution

$$\textbf{Step-1: Simplification}$$
$$-12-(-5)=?$$
$$\text{We know that}$$ $$(-)\times (-)=+$$
$$\text{Hence, we get}$$ $$-12+5$$
$$\textbf{Step-2: Solving}$$
$$-12+5=5-12$$
$$=-7$$

$$\textbf{Hence , the correct option is (B).}$$
Question 8
1 / -0

Mark against the correct answer in the following:
On subtracting -8 from -13, we get

A
-21

B
21

C
5

D
-5

Solution

To get the required value, we subtract $$-8$$ from $$-13$$
$$=-13-(-8)$$
$$=-13+8$$
$$=-5$$
Question 9
1 / -0

Answer the following using number line.
The integer which is $$ 7 $$ more than $$ -4 $$ is

A
$$ -7 $$

B
$$ -3 $$

C
$$ 3 $$

D
$$ 7 $$

Solution

Starting from $$-4$$, move $$7$$ unit right. So, from the above figure, we can conclude that integer $$ 3$$ is $$7$$ more than $$ -4 .$$
Question 10
1 / -0

The greater integer lying between $$-10$$ and $$-15$$ is

A
$$-10$$

B
$$- 11$$

C
$$-14$$

D
$$-15$$

Solution

Option $$B$$ is right.
$$-11$$ is the greatest integer lying between $$-10$$ and $$-15$$.

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Re-Attempt Weekly Quiz Competition

Integers Test - 38

Result

Integers Test - 38

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Rank

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SHARING IS CARING

Question 1

$$-8$$

$$8$$

$$81$$

$$63$$

Solution

Question 2

$$-21$$

$$-7$$

$$-14$$

$$21$$

Solution

Question 3

$$-17$$

$$17$$

$$\dfrac {1}{17}$$

$$-\dfrac {1}{17}$$

Solution

Question 4

$$-4 > -3$$

$$-4 < -3$$

$$-4$$ and $$-3$$ are non-comparable

None

Solution

Question 5

$$9$$

$$-9$$

$$-1$$

$$1$$

Solution

Question 6

$$-73$$

$$73$$

$$22$$

None of these

Solution

Question 7

$$-17$$

$$-7$$

$$7$$

None of these

Solution

Question 8

-21

21

5

-5

Solution

Question 9

$$ -7 $$

$$ -3 $$

$$ 3 $$

$$ 7 $$

Solution

Question 10

$$-10$$

$$- 11$$

$$-14$$

$$-15$$

Solution

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