Maths-

General

Easy

Question

# Let X={1,2,3,4} and Y={1,3,5,7,9} . Which of the following is relations from X to Y-

## The correct answer is:

### To find the relation from X to Y.

From the given option,

R1 = {(x, y) : y = 2 + x, x ∈ X, y ∈ Y}

x = 1 → y = 1 + 2 = 3

x = 2 → y = 2 + 2 = 4

x = 3 → y = 3 + 2 = 5

x = 4 → y = 4 + 2 = 6

x = 5 → y = 5 + 2 = 7

R = {(1, 3), (2, 4), (3, 5), (4, 6), (5, 7)}

In (4, 6), 6 ∉ either X or Y

R1 is not a relation between X and Y.

In R4, the element (7, 9) is present which relates set Y to set Y

R4 is not a relation between X and Y.

So the correct relations are R2 and R3.

### Related Questions to study

Maths-

### If Q=then-

Hence, is correct.

### If Q=then-

Maths-General

Hence, is correct.

Maths-

### Let Aand =R-D, then the set D is

Therefore, set of D is .

### Let Aand =R-D, then the set D is

Maths-General

Therefore, set of D is .

Maths-

### Which set is the subset of all given sets ?

Therefore, { } is a subset of all givens sets.

### Which set is the subset of all given sets ?

Maths-General

Therefore, { } is a subset of all givens sets.

Maths-

### Let A and B be two sets such that n(A) = 70, n(B) = 60 and = 110. Then is equal to-

Therefore, n(A∩B) = 20

### Let A and B be two sets such that n(A) = 70, n(B) = 60 and = 110. Then is equal to-

Maths-General

Therefore, n(A∩B) = 20

Maths-

### The shaded region in the given figure is

### The shaded region in the given figure is

Maths-General

Maths-

### Which of the following are true ?

Therefore, from the given options, is true.

### Which of the following are true ?

Maths-General

Therefore, from the given options, is true.

Maths-

### The set of intelligent students in a class is-

### The set of intelligent students in a class is-

Maths-General

Maths-

### Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A={1, 2, 5}, B = {6, 7} then is-

Therefore, A ⋂ B’ = A.

### Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A={1, 2, 5}, B = {6, 7} then is-

Maths-General

Therefore, A ⋂ B’ = A.

Maths-

### If , then is equal to-

Therefore, is equal to = A

### If , then is equal to-

Maths-General

Therefore, is equal to = A

physics-

### The velocity of a body is given by the equation , where t is the time taken. The body is undergoing.

### The velocity of a body is given by the equation , where t is the time taken. The body is undergoing.

physics-General

physics-

### A bus is moving at 20 . How much distance in kilometers will the bus cover in 25 minutes.

### A bus is moving at 20 . How much distance in kilometers will the bus cover in 25 minutes.

physics-General

physics-

### An object moves from A to B in 2h in given figure. The velocity of object is.

### An object moves from A to B in 2h in given figure. The velocity of object is.

physics-General

physics-

### A car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr. The average speed is

### A car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr. The average speed is

physics-General

physics-

### The displacement of object in given diagram is

### The displacement of object in given diagram is

physics-General

physics-

### Distance is a

### Distance is a

physics-General