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.
336
420
576
720
Correct answer is A
Total floor area = 720 x 420
Area of one tile = 30 x 30
No. of tile required = \(\frac{720 \times 420}{30 \times 30}\)
= 24 x 14
= 336 tiles
4sin2 x - 3 = 0, find x if 0 \(\geq\) x \(\geq\) 90o
30o
45o
60o
9o
Correct answer is C
4 sin2x - 3 = 0
sin2x = \(\frac{3}{4}\)
Sin x = \(\pm\) \(\sqrt{\frac{3}{4}}\)
= \(\pm\) \(\sqrt{\frac{3}{4}}\)
= 60o
10(sin 35o - sin 55o)
10 cos35o - cos 55o
10(tan35o - tan55o)
10(cot35o - cot55o)
Correct answer is D
x = 10 cot35o - 10 cot55o
= 10(cot35o - cot55o)
If x : y = 5 : 12 and z = 52cm, find the perimeter of the triangle.
68cm
84cm
100cm
120cm
Correct answer is D
13 = 52
1 = \(\frac{52}{13}\)
= 4
5 + 12 + 13 = 30
Total perimeter = 30 x 4
= 120cm
In XYZ, y = z = 30° and XZ = 3cm. Find YZ
\(\frac{\sqrt{3}}{2}\) cm
3\(\frac{\sqrt{3}}{2}\) cm
3\(\sqrt{3}\) cm
2\(\sqrt{3}\) cm
Correct answer is C
Y \(\to\) 30°
X \(\to\) 120°
Z \(\to\) 30°
\(\frac{3}{\text{sin 30}}\) = \(\frac{YZ}{\text{sin 120}}\)
YZ = \(\frac{3\times \sin 120}{\sin 30}\)
\(3 \times \frac{\sqrt{3}}{2} \times 2 = 3\sqrt{3}\)