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.

966.

A bag contains 4 blue and 8 red identical balls. If two balls are picked at random with replacement, what is the probability of picking two balls of different colours?

A.

1

B.

\(\frac{13}{26}\)

C.

\(\frac{5}{18}\)

D.

\(\frac{4}{9}\)

E.

\(\frac{2}{9}\)

Correct answer is D

No explanation has been provided for this answer.

967.

Evaluate log 18 + log6 - log16\(^{\frac{1}{2}}\)

A.

log 3

B.

log 9

C.

log 20

D.

3 log 2

E.

3 log 3

Correct answer is E

No explanation has been provided for this answer.

968.

For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined

A.

-5, -10

B.

-10

C.

-5

D.

5

E.

10, 5

Correct answer is D

No explanation has been provided for this answer.

969.

In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.

A.

24m

B.

14m

C.

12m

D.

7m

E.

6m

Correct answer is A

No explanation has been provided for this answer.

970.

Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.

A.

14.6

B.

14

C.

12

D.

6.2

E.

1.2

Correct answer is E

No explanation has been provided for this answer.