Mathematics Quiz

If A={1, 3, 5, 7}, then what is the cardinality of the power set P(A)?

• 15

• 17

• 8

• 16

The set {1, 2, 3, ...} is ...Y... set. Here, Y refers to

• infinite

• null

• finite

• singleton

If A={2, 4, 6}, B={1, 3, 5} and C={0, 7}, then the universal set will be

• {1, 2, 3, 4, 5, 6}

• {0, 7}

• {0, 1, 2, 3, 4, 5, 6, 7}

• {0,1, 3, 5, 7}

If X={n | n∈N, n=8k+7} and Y={n | n∈N, n=49k+49}, then

• X∩Y= φ

• X⊂Y

• Y⊂X

• X=Y

The set A={14, 21, 28, 35, 42, ..., 98} in set-builder form is

• {xn | n∈N, x=7n, 4≤n≤12}

• {xn | n∈N, x=7n, 3≤n≤13}

• {xn | n∈N, x=7n, 2≤n≤14}

• {xn | n∈N, x=7n, 1≤n≤15}

What is the cardinality of the set A = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}?

• 10

• 11

• 12

• 13

Which of the following is a singleton set?

• {1, 2, 3}

• {A}

• {1}

• {1, 2}

What is the length of the interval {x: -5 < x ≤ 6}?

• 13

• 12

• 11

• 10

If a set A has 4 elements, how many elements will be in its power set?

• 8

• 12

• 20

• 16

Which of the following is true about the power set of set A = {2, 4, 6}?

• {2, 4, 6} ∈ A

• {1, 2} ∈ A

• Number of elements in power set of A is 16

• A ⊂ {1, 2}