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.
1 : 4
1 : 5
2 : 5
5 : 2
Correct answer is C
Tunde: Ola \(\to\) 1 : 2 ; Ola; Musa \(\to\) 4 : 5
\(\frac{1}{2}\) x \(\frac{4}{5}\)
= \(\frac{2}{5}\)
Evaluate \(\frac{3\frac{1}{4} \times 1\frac{3}{5}}{11\frac{1}{3} - 5 \frac{1}{3}}\)
\(\frac{14}{15}\)
\(\frac{13}{15}\)
\(\frac{4}{5}\)
\(\frac{11}{15}\)
Correct answer is B
\(\frac{3\frac{1}{4} \times 1\frac{3}{5}}{11\frac{1}{3} - 5 \frac{1}{3}}\) = \(\frac{\frac{26}{5}}{\frac{18}{3}}\) = \(\frac{26}{5} \div \frac{18}{3}\)
= \(\frac{13}{15}\)
If x varies inversely as y and y varies directly as z, what is the relationship between x and z?
x \(\alpha\) z
x \(\alpha\) \(\frac{1}{z}\)
a \(\alpha\) z\(^2\)
x \(\alpha\) \(\frac{1}{z^2}\)
Correct answer is B
\(x \propto \frac{1}{y}\), y \(\propto\) z
x = \(\frac{k}{y}\)
y = mz
Since y = mz,
x = \(\frac{k}{mz}\), where k and m are constants. Hence,
x \(\propto\) \(\frac{1}{z}\)
Express 0.0000407, correct to 2 significant figures
0.0
0.00004
0.000041
0.0000407
Correct answer is C
0.0000407 to 2 s.f 0.000041 (2 s.f)
The graph of y = x\(^2\) and y = x intersect at which of these points?
(0,0), (1,1)
(0,0), (0,1)
(1, 0), (0, 0)
(0, 0) (0, 0)
Correct answer is A
y = x\(^2\) ....(1)
y = x ......(2)
y = y
x\(^2\) - x
x\(^2\) - x = 0
x(x - 1) = 0
x = 0 or x - 1 = 0
x = 0 or x = 1
when x = 0, y = 0\(^2\) = 0
when x = 1, y = 1\(^2\) = 1
Hence; the two graphs interest at (0, 0) and (1, 1)