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.
What must be added to x2 - 3x to make it a perfect square?
\(\frac{9}{4}\)
\(\frac{9}{2}\)
6
9
Correct answer is A
x2 - 3x + k(perfect square)
k = (-\(\frac{3}{2}\))2 ; k = \(\frac{9}{4}\)
2
4
10
25
Correct answer is D
From y = \(\frac{1}{2} \sqrt{x}\)
when y = 2.5 or \(\frac{5}{2}\), x = P
\(\frac{5}{2} \times \frac{1}{2} \sqrt{P}\)
\(\sqrt{P} = \frac{10}{2} = 5\)
P = 52
= 25
0.5
1
1.5
2
Correct answer is A
y = k\(\sqrt{x}\) when y = 1, x = 4
k = \(\frac{y}{\sqrt{x}}\)
= \(\frac{1}{\sqrt{4}}\)
= \(\frac{1}{2}\)
= 0.5
\(\frac{1}{8}\)
\(\frac{1}{3}\)
\(\frac{3}{8}\)
\(\frac{3}{5}\)
Correct answer is C
ratio of boys to girls = 5:3
total = 5 + 3 = 8
Pr(girl) = \(\frac{3}{8}\)
If tan y = 0.404, where y is acute, find cos 2y
0.035
0.719
0.808
0.927
Correct answer is B
tan y = 0.404; y = tan-1 0.0404(tables);y = 22o
cos 2y = cos 2(22o); cos 44o
= 0.719