Introduction to Inequality

Q.

$9$ taken away from the sum of $y$ and $z$.

1. $y+z+9$

2. $9-\left(y+z\right)$

3. $\left(y+z\right)-9$

4. $\frac{9}{y+z}$

Q. If Mila's height is 160 cm and Nora's height is 165 cm, then

1. $\text{Mila's height < Nora's height}$
2. $\text{Mila's height > Nora's height}$
3. $\text{Mila's height = Nora's height}$
4. $\text{Mila's height}\ge \text{Nora's height}$

Q.
For the given diagram, the inequality represented in yellow is .

1. $x>10$
2. $x\le 10$
3. $x\ge 10$

Q. A number $x$ not more than 20 can be written as $x\le 20$.

1. True
2. False

Q.

Inequality created by adding or subtracting a number from both sides of an inequality is not equivalent to the original inequality.

1. True
2. False

Q. $4>3$ is the same as $3<4$.

1. False
2. True

Q. $x>5$ implies that:

1. $x\text{is less than 5}$
2. $x\text{is greater than 5}$
3. $x\text{is equal to 5}$
4. $x\text{is greater than or equal to 5}$

Q. Tap the bubble with correct inequality relation.

1. $2<3$
2. $5>10$
3. $15>21$
4. $35>20$
5. $150>155$
6. $250<300$
7. $340>200$
8. $485>250$
9. $1520>2000$
10. $2500>2300$

Q. $a\le b$ is read as $a$ is less than $b$.

1. True
2. False