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.
20
21
15
18
Correct answer is A
\(\begin{array}{c|c} \text{Age in years} & 10 & 20 & 30 & 40 & 50 \\\hline \text{frequency} & 3 & 4 & 5 & 6 & 2\end{array}\)
\(\sum f \) = number of people involved in the pollution
\(\sum f\) = 3 + 4 + 5 + 6 + 2 = 20
20o
40o
10o
30o
Correct answer is B
PS = SR
\(\bigtriangleup\)PSR is an isosceles
< P = < SPQ = 40°
< R = < SRQ
< PSQ = < SRQ (alternate segment)
< PSQ = 40°
Triangle OPQ is the solution of the inequalities
x - 1 < 0, y + \(\geq\) 0, y - x \(\geq\) 0
x + 1 \(\leq\) 0, y + x \(\geq\) 0, y - x \(\leq\) 0
x - 1 \(\geq\) 0, y - x \(\geq\) 0, y + x \(\geq\) 0
y + x \(\geq\) 0, y - x \(\leq\) 0
Correct answer is B
No explanation has been provided for this answer.
Use the graph find the values of p and q if px + qy \(\geq\) 4
p = 2, q = -1
p = -1, q = 2
p = 2, q = 2
p = 1, q = 2
Correct answer is B
m = \(\frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 0}{0 - (4)} = \frac{2}{4} = \frac{1}{2}\)
\(\frac{y_2 - y_1}{x_2 - x_1} \geq m\)
\(\frac{y - 0}{x + 4} \geq \frac{1}{2}\)
2y \(\geq\) x + 4, -x + 2y \(\geq\) 4 = px + qy \(\geq\) 4
p = -1, q = 2
17
16
15
14
Correct answer is A
\(\begin{array}{c|c} \text{no. of passengers} & \text{Number of taxis}\\ \hline 0.5 - 2.5 & 3\\ 2.5 - 4.5 & 4 \\ 4.5 - 6.5 & 7\\ 6.5 - 8.5 & 5\\ 8.5 - 10.5 & 4 \\ 10.5 - 12.5 & 1\\ \hline \text{Total} & 24 \end{array}\)
Thus, the taxi with more than 4 passengers
= 7 + 5 + 4 + 1 = 17