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.

1,461.

If the probability of an event occurring is x, what is the probability of the event not occurring?

A.

1 - x

B.

x - 1

C.

0

D.

\(\frac{1}{x}\)

Correct answer is A

If p is the probability of an event happening(occurring) and the probability of an event not occurring is p1 then p + p1 = 1

p1 = 1 - p

x1 = 1 - x

1,464.

Each of the interior angle of a regular polygon is 162o. How many sides has the polygon?

A.

8

B.

12

C.

16

D.

20

Correct answer is D

\(\frac{(n - 2)180}{n}\) = 162 (where n = no. of sides)

162n = 180n - 360

162n - 180n = -360

-18n = - 360

n = \(\frac{360}{18}\)

n = 20

1,465.

Find the volume of a solid cylinder with base radius 10cm and height 14cm.

A.

2203

B.

880cm3>

C.

1400cm3

D.

4400cm3

Correct answer is D

volume of a cylinder = \(\pi r^2h\)

r = 10cm

h = 14cm

= \(\frac{22}{7} \times 10 \times 10 \times 14\)

= 4400cm3