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.

1,071.

The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?

A.

10.5 years

B.

19.0 years

C.

35.4 years

D.

264.0 years

E.

423.5 years

Correct answer is B

No explanation has been provided for this answer.

1,073.

If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k

A.

58

B.

38

C.

19

D.

11

E.

967

Correct answer is C

To calculate Mean: add up all the numbers ⇒ 3+5+8+k+14+17 = 47 + k then divide by how many numbers there are ⇒ 6 The Mean is already given as 11 11 = (47 + k) / 6 Cross multiply to solve for k : k = (6 X 11) - 47 k = 19

1,074.

The bearing of a point Y from point x is 150°. What is the bearing of X from Y?

A.

330°

B.

240°

C.

150°

D.

120°

E.

30°

Correct answer is A

No explanation has been provided for this answer.

1,075.

Simplify 27\(^{-\frac{1}{3}}\) \(\times\) 64\(^{-\frac{1}{3}}\) \(\times\) 4\(^{\frac{1}{3}}\)

A.

48

B.

12

C.

\(\frac{4}{3}\)

D.

\(\frac{1}{12}\)

E.

\(\frac{1}{48}\)

Correct answer is D

No explanation has been provided for this answer.