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.

986.

Find the value of t such that the expression \(\frac{1}{t}\) + \(\frac{4}{3}\) - \(\frac{5}{6t}\) + 1 is equal to zero

A.

\(\frac{1}{6}\)

B.

\(\frac{1}{-14}\)

C.

- \(\frac{3}{2}\)

D.

\(\frac{7}{6}\)

E.

\(\frac{2}{5}\)

Correct answer is B

\(\frac{1}{t}\) + \(\frac{4}{3}\) - \(\frac{5}{6t}\) + 1 = 0 

collect like terms

\(\frac{4}{3}\) + 1 =  \(\frac{5}{6t}\) - \(\frac{1}{t}\)

\(\frac{4 + 3}{3}\) = \(\frac{-1}{6t}\)

cross multiply

42t = - 3

t =  \(\frac{-3}{42t}\)

t =  \(\frac{-1}{14}\)

987.

If log102 = 0.3010 and log103 = 0.4771, simplify: (Log108-log92) ÷ (Log109 - log102)

A.

4

B.

3

C.

0.0784

D.

-4

E.

-0.0784

Correct answer is E

No explanation has been provided for this answer.

988.

A bag contains p dozens of bananas and 3q of these proved to be bad. If I buy one third of the goods ones, how many do I get?

A.

P -3q

B.

\(\frac{1}{3}\) (p - 3q)

C.

3q

D.

4p - q

E.

12p - 3q

Correct answer is D

No explanation has been provided for this answer.

989.

Four pupils have an average age of 12years and two other pupils of average age of 10.5years are added. What is the average age of the six pupils?

A.

10.5yrs.

B.

11yrs.

C.

11.5 yrs.

D.

12yrs.

E.

12.5yrs.

Correct answer is C

No explanation has been provided for this answer.

990.

The bearing of Y from X is 085º. What is the bearing of X from Y?

A.

005°

B.

095°

C.

185°

D.

265°

E.

275°

Correct answer is D

The bearing of Y from X is 085º lies within 90º

The bearing of X from Y lies within 270º

: 180º + 85º = 265º