Suppose set A 1 2 3 5 8 13 21 34 and set B 1 4 7 10 13 Whi

Suppose set A = {1, 2, 3, 5, 8, 13, 21, 34} and set B = {1, 4, 7, 10, 13}. Which of the following statements is true?

a. B is a subset of A.

b. B has less elements than A.

c. A is a subset of B.

d. A and B are disjoint.

Solution:

So option (a) is not true.

So B has less elements than A.

Hence option (b) is true.

So option (c) is not true.

So option (d) is not true.

Answer : option (b) : B has less elements than A.

A = {1, 2, 3, 5, 8, 13, 21, 34} and set B = {1, 4, 7, 10, 13}.

A B = {1,13}

since n(A B) 0, hence A and B are not disjoint.