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.

3,486.

sinθ = 1/2 and cosθ = -√3/2, what is the value of θ?

A.

30 0

B.

60 0

C.

90 o

D.

120 o

E.

150 o

Correct answer is E

In the 2nd Quadrant; SINE is the only Positive.

Where θ is 30 for the first quadrant and

 150 in the 2nd quadrant which makes COSINE negative 

3,487.

Given that logp = 2 logx + 3logq, which of the following expresses p in terms of x and q?

A.

p = 5xq

B.

p = 6xq

C.

p = x2 + q3

D.

p = 2x + 3q

E.

p = x2q3

Correct answer is E

log p = 2log x + 3log q

log p = logx 2 + logq 3

logp = log x 2q 3

p = x 2q 3

3,488.

Solve for x: (x2 + 2x + 1) = 25

A.

-6, -4

B.

6, -4

C.

6, 4

D.

-6, 4

E.

5, 5

Correct answer is D

x2 + 2x + 1 = 25

x2 + 6x - 4x -24= 0

x(x + 6) - 4(x + 6) = 0

(x - 4) - (x + 6) = 0

x = 4 or -6 = -6,4

3,490.

In the diagram above, O is the center of the circle. If ∠POR = 114o, calculate ∠PQR

A.

123o

B.

118.5o

C.

117o

D.

114o

E.

54o

Correct answer is A

Reflex POR = 2PQR
Reflex PQR = 360o - 114o = 246o
PQR = 246/2 = 123o