Mathematics questions and answers

Mathematics Questions and Answers

How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.

3,151.

A and B are two sets. The number of elements in A∪B is 49, the number in A is 22 and number in B is 34. How many elements are in A ∩ E?

A.

105

B.

27

C.

15

D.

12

E.

7

Correct answer is E

Let x represent the intersection
34 - x + 22 - x + x = 49
  - x = 49 - 56; x = 7

3,152.

If P = {3, 5, 6} and Q = {4, 5, 6} then P∩Q equals

A.

{3, 4}

B.

{4, 5}

C.

{4, 6}

D.

{5, 6}

E.

{3, 5}

Correct answer is D

P ∩ Q = {5, 6}

3,153.

Express (0.0425 / 2.5) as a fraction

A.

17/10,000

B.

17/1,000

C.

17/250

D.

17/100

E.

17/10

Correct answer is B

0.0425/2.5

=

425/25000

=

17/1000

3,155.