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
\(\frac{3}{4}\)
\(\frac{1}{8}\)
\(\frac{1}{4}\)
Correct answer is C
Girl = \(\frac{1}{2}\)
Blue eyes = \(\frac{1}{4}\)
probability that she will give birth to a girl with blue eyes: \(\frac{1}{2}\) x \(\frac{1}{4}\)
= \(\frac{1}{8}\)
36º
42º
54º
72º
Correct answer is A
The sum of angles in a triangle = 180º
(180 - 108)º = 72º
Isosceles triangle has both two equal sides and two equal angles.
∠OSN = ∠SON = \(\frac{72}{2}\)
= 36º
In the diagram, MNR is a tangent to the circle centre O at N and ∠NOS = 108°. Find ∠OSN
72°
32°
36°
18°
Correct answer is C
The sum of angles in a triangle = 180º
(180 - 108)º = 72º
Isosceles triangle has both two equal sides and two equal angles.
∠OSN = ∠SON = \(\frac{72}{2}\)
= 36º
Given that sin (5x-28)° = cos (3x-50)", 0°≤ x ≤ 90°, find the value of x.
39
32
21
14
Correct answer is B
using the trial method by inserting each option in the equation.
Inserting 21º: sin([5 x 21] - 28) = cos([3 x 21] - 50)
sin(105 - 28) = cos (63 - 50)
sin 77º = cos 13º
where:
sin 77º = 0.9744
cos 13º = 0.9744
70º
47º
19º
8º
Correct answer is A
The angle of elevation
= Tan θ = \(\frac{opp}{adj}\)
Tan θ = \(\frac{12+14}{10}\)
Tan θ = \(\frac{26}{10}\)
θ = Tan\(^{-1}\)(2.6)
θ ≈ 70º