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.
0.7cm
1.2cm
2.0cm
2.5cm
Correct answer is B
let the chord be AB = 7cm
radius OA = 3.7cm distance of the = OM using Pythagoras theorem
OA2 = AM2 + OM2
3.72 = 3.52 + OM2
13.69 = 12.25 + OM2
13.69 - 12.25 = OM2
1.44 = OM2
OM = \(\sqrt{1.44}\)
OM = 1.2cm
distance of chord = 1.2cm
3.0cm
3.5cm
7.0cm
7.5cm
Correct answer is B
diameter = 12cm
radius = \(\frac{12}{2}\)cm = 6cm
area of sector = 66cm2
area of sector = area of cone
66 = \(\pi rl\)
66 = \(\frac{22}{7} \times r \times 6\)
divide both sides by 6
11 = \(\frac{22}{7}r\)
22r = 11 x 7
r = \(\frac{77}{22}\)
= 3.5cm
3.8
3.0
2.8
2.3
Correct answer is A
\(\begin{array}{c|c} height(x) & frequency(f) & fx \\ \hline 2 & 2 & 4\\ 3 & 4 & 12\\ 4 & 5 & 20 \\ 5 & 3 & 15\\ 6 & 1 & 6\end{array}\)
mean\(\bar{x} = \frac{\sum fx}{\sum f}\)
= \(\frac{57}{15}\)
= 3.8
If (x - a) is a factor pf bx - ax + x2, find the other factor.
(x + b)
(x - b)
(a + b)
(a - b)
Correct answer is A
No explanation has been provided for this answer.
Find the gradient of the line joining the points (2, -3) and 2, 5)
9
1
2
undefined
Correct answer is D
(2, -3)(2, 5)
gradient = \(\frac{y_ = y_1}{x_2 = x_1} = \frac{5 - (-3)}{2 - 2}\)
= \(\frac{5 + 3}{0}\)
= \(\frac{8}{0}\)
= undefined