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.
\(8\sqrt{3}\) cm
4 cm
8 cm
\(8\sqrt{2}\) cm
Correct answer is D
Length of chord = \(2r \sin (\frac{\theta}{2})\)
= \(2 \times 8 \times \sin (\frac{90}{2})\)
= \(16 \times \frac{\sqrt{2}}{2}\)
= \(8\sqrt{2} cm\)
720
336
420
576
Correct answer is B
Length of the tile = 30 cm = 0.3m
Area of the tile = 0.3 \(\times\) 0,3 = 0.09 m\(^2\)
Area of the room = (7.2 \(\times\) 4.2)m\(^2\)
Number of tiles = \(\frac{7.2 \times 4.2}{0.09}\)
= 336
If the angles of a quadrilateral are (3y + 10)°, (2y + 30)°, (y + 20)° and 4y°. Find the value of y.
66°
12°
30°
42°
Correct answer is C
Sum of angles in a quadrilateral = 360°
\(\therefore\) (3y + 10) + (2y + 30) + (y + 20) + 4y = 360
10y + 60 = 360 \(\implies\) 10y = 300
y = 30°
Find \(\frac{\mathrm d y}{\mathrm d x}\) if \(y = \cos x\).
\(\sin x\)
\(- \sin x\)
\(\tan x\)
\(- \tan x\)
Correct answer is B
If \(y = \cos x\)
\(\frac{\mathrm d y}{\mathrm d x}\) =—\(\sin x\)
52 cm
43 cm
40 cm
15 cm
Correct answer is B
\(\tan 16 = \frac{x}{150}\)
\(x = 150 \tan 16\)
= \(43 cm\)