Difference of Two Sets

Q. What does the shaded region of the Venn diagram shown below represent?

1. $A-B$
2. $SetA$
3. $B-A$
4. None of the above

Q. Observe the following Venn diagram and choose the correct statements.

1. Set of odd numbers - Set of numbers greater than 10= {1, 3, 5, 7, 9}
2. Set of numbers greater than 10 - Set of odd numbers = {11, 13, 15, 17, 19}
3. Set of numbers greater than 10 $\cap$ Set of odd numbers = {11, 13, 15, 17, 19}
4. Set of numbers greater than 10 $\cup$ Set of odd numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

Q. Question 5 (vi)
Find
11.2 $\times$ 0.15

Q.

The operation in which we obtain the elements that are only in set A but not in set B is __________ .

1. B - A

2. A $\cup$ B

3. A - B

4. A + B

Q. A = { x : 6 < x < 10} and B = { x : 0 < x < 15}. Find B - A.

1. {7, 8, 9}
2. {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}
3. {1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14}
4. {}

Q. What is the class mark of the class $135-155$?

Q.

State which of the following statement are true or false.

$\left\{Monthofayearhaving30days\right\}=\left\{April,June,September,November\right\}$

1. True
2. False

Q. Brian is playing billiards with his friends at a sports club. The balls are arranged in a triangular frame, as shown in the given image.
Brian notices that there are 12 balls, numbered from 1 to 12 without repetition.

Find the missing numbers on the balls, if the sum of the numbers on the balls is 36 on each side of the triangle.

1. A = 11; B = 9; C = 4
2. A = 9; B = 4; C = 11
3. A = 11; B = 9; C = 6
4. A = 9; B = 11; C = 4

Q.

Represent the following by a venn diagram$.$

$A=\left\{1,2\right\}$ and $B=\left\{-1,-2\right\}$

Q. Solve the following quadratic equation using formula.

Q. For all the sets A, B and C,
(A – B) ∩ (C – B) =

1. $\left(A\cap C\right)\cap B$
2. $\left(A\cap C\right)-B$
3. $\left(A\cap C\right)\cap B$
4. $\left(A-C\right)-B$

Q. State whether the following statement is true or false
$0$ $ϵ$ $\varphi$

1. True
2. False

Q. How do you solve $(x-3{)}^2=5?$

Q. Next three consecutive numbers in the pattern are

1. $0,–3,–6$
2. $–1,–5,–8$
3. $–2,–5,–8$
4. $–1,–4,–7$

Q. How many such 2s are there in the following number sequence each of which is immediately preceded by an odd number?
3 3 2 1 4 2 3 1 4 2 2 3 3 1 4 1 1 3 2 3 4

1. 1
2. 2
3. 3
4. 4