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.
Find the median of 2,3,7,3,4,5,8,9,9,4,5,3,4,2,4 and 5
9
8
7
4
Correct answer is D
Arrange all the values in ascending order, 2,2,3,3,3,4,4,4,4,5,5,5,7,8,9,9
126
180
216
224
Correct answer is D
\(\frac{x}{7} = \frac{96}{1}\) ==> \(\frac{672 + x}{8} = 112\)
Therefore x = 224
Evaluate \(\int^{\frac{\pi}{4}}_0sec^2 \theta d \theta\)
1
2
3
4
Correct answer is A
\(\int^{\frac{\pi}{4}}_0sec^2 \theta d \theta\)
= \([\tan \theta]_{0} ^{\frac{\pi}{4}}\)
= \(\tan \frac{\pi}{4} - \tan 0\)
= \(1 - 0\)
= 1.
Evaluate \(\int^2_1(x^2 - 4x)dx\)
\(\frac{11}{3}\)
\(\frac{3}{11}\)
\(-\frac{3}{11}\)
\(-\frac{11}{3}\)
Correct answer is D
\(\int^2_1(x^2 - 4x)dx\)
\((\frac{x^3}{3} - \frac{4x^2}{2})\)
substituting integrate values
\([\frac{8}{3} - \frac{4 \times 4}{2}] - [\frac{1}{2} - 2]\)
= \(-\frac{11}{3}\)
If y = x2 - \(\frac{1}{x}\), find \(\frac{\delta y}{\delta x}\)
2x - \(\frac{1}{x^2}\)
2x + x2
2x - x2
2x + \(\frac{1}{x^2}\)
Correct answer is D
y = x2 - \(\frac{1}{x}\)
y = x2 - x-1
\(\frac{\delta y}{\delta x}\) = 2x + x-2
\(\frac{\delta y}{\delta x}\) = 2x + \(\frac{1}{x^2}\)