Q2 of 76 Page 2

Mark the correct alternative in the following:

If R is a relation on the set A = {1, 2, 3, 4, 5, 6, 7, 9} given by xRyy = 3 x, then R =


Here, y = 3x;

If x = 1; then y = 3.


If x = 2; then y = 6.


If x = 3; then y = 9.


Therefore the required relation will be R = {(1, 3), (2, 6), (3, 9)}.


So, correct answer is D.

More from this chapter

All 76 →
12

Let A = {1, 2, 3, 5}, B = {4, 6, 9} and R be a relation from A to B defined by R = {(x, y) : x − y is odd}. Write R in roster form.

 1

Mark the correct alternative in the following:

If A = {1, 2, 4}, B = {2, 4, 5}, C = {2, 5}, then (A−B) × (B − C) is


 3

Mark the correct alternative in the following:

Let A = {1, 2, 3}, B = {1, 3, 5}. If relation R and A to B is given by R = {(1, 3), (2, 5), (3, 3)}. Then R−1 is


 4

Mark the correct alternative in the following:

If A = {1, 2, 3} B = {1, 4, 6, 9} and R is a relation from A to B defined by ‘x is greater than y. The range of R is