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.

3,556.

Simplify (271/3)2

A.

41/2

B.

6

C.

9

D.

18

E.

81

Correct answer is C

(271/3)2
= (33 x 1/3)2 = 32 = 9

3,557.

If sinθ = 3/5 find tanθ for 0 < θ < 90o

A.

4\5

B.

3\4

C.

5\8

D.

1\2

E.

3\8

Correct answer is B

sinθ = 3/5
tanθ = 3/4

3,558.

Points P and Q respectively 24m north and 7m east point R. What is the bearing of Q from P to the nearest whole degree?

A.

16o

B.

17o

C.

73o

D.

106o

E.

164o

Correct answer is E

Using pythagoras' theorem:

Hyp\(^2\) = Adj\(^2\) + Opp\(^2\) → 24\(^2\) + 7\(^2\)

Hyp = √625 → 25

\(\tan P = \frac{7}{24}\)

\(\tan P = 0.2917\)

\(P = \tan^{-1} (0.2917)\)

= 16.26° 

Bearing of Q from P = 180° - 16.26°

= 163.74° \(\approxeq\) 164°

3,559.

Points P and Q respectively 24m north and 7m east point R. Calculate |PQ| in meters

A.

20

B.

24

C.

25

D.

31

E.

84

Correct answer is C

No explanation has been provided for this answer.