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.
A variable y is inversely proportional to x2, when y = 10, x = 2. What is y when x = 10?
2
4
100
0.4
0.1
Correct answer is D
y \(\alpha\) \(\frac{1}{x^2}\)
y = \(\frac{k}{x^2}\)
k = x2y
= (2)2 x 10
= 40
y = \(\frac{40}{x^2}\)
= \(\frac{40}{(10)^2}\)
= \(\frac{40}{100}\)
= 0.4
2cm
8cm
4cm
2\(\sqrt{3}\)cm
16cm
Correct answer is D
\(\frac{x}{2}\) = sin60° = cos30°
x = 2 sino
= 2 x \(\frac{\sqrt{3}}{2}\)
= \(\sqrt{3}\)
length of the diagonal = 2 x \(\sqrt{2}\)
= 2\(\sqrt{3}\)
If the function y = 5x is graphed, what would be its intercept on the y-axis?
5
\(\frac{1}{5}\)
1
2
zero
Correct answer is E
y = 5x, when x = 0
y = 0, when x = 1
y = 5
intercept on y axis is 0
N215.30
N134.10
N143.10
N80.00
N50.30
Correct answer is B
\(\bar{x}\) = \(\frac{fx}{N}\)
= \(\frac{6705}{50}\)
= 1341
= N134.10
Simplify f\(\frac{1}{2}\)g2h\(\frac{1}{2}\) \(\div\) f\(\frac{5}{2}\)goh\(\frac{7}{3}\)
(\(\frac{g}{fh}\))2
f2g2h2
\(\frac{5}{4}\)goh\(\frac{7}{9}\)
\(\frac{g^2}{f^5h^7}\)
\(\frac{1}{f^2h^2}\)
Correct answer is A
f\(\frac{1}{2}\)g2h\(\frac{1}{2}\) \(\div\) f\(\frac{5}{2}\)goh\(\frac{7}{3}\) = f\(\frac{1}{2}\) - \(\frac{5}{2}\) g2 - 0 h\(\frac{1}{2}\) - \(\frac{7}{3}\)
f-2 g2 h-2
= \(\frac{g^2}{f^2h^2}\)
= (\(\frac{g}{fh}\))2