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.
142cm2
132cm2
122cm2
112cm2
Correct answer is B
A prism has 3 rectangular faces and 2 triangular faces and 2 rectangular faces = 10(3 + 4 + 5) = 120
Area of triangular faces = \(\sqrt{s(s - a) (s - b) (s - c)}\)
where s = \(\frac{a + b + c}{2}\)
= \(\frac{3 + 4 + 5}{2}\)
= \(\frac{12}{2}\)
= 6
Area of \(\bigtriangleup\) = \(\sqrt{6(6 - 30(6 - 4)(6 - 5)}\)
= \(\sqrt{6 \times 3 \times 2 \times 1}\) = 6
Area of triangle faces = 2 x 6 = 12cm2
Total surface area = Area of rectangular face + Area of \(\bigtriangleup\) = 120 + 12
= 132cm2
Esther was facing S 20° W. She turned 90° in the clock wise direction. What direction is she facing?
N 70o W
S 70o W
N 20o W
S 20o E
Correct answer is A
The bearing S 20° W is equivalent to a bearing of 200°.
Moving clockwise 90° ⇒ 200° + 90°
= 290°
This is equivalent to N 70° W.
A regular polygon of n sides has each exterior angle to 45o. Find the value of n
6
8
12
15
Correct answer is B
Each interior angle = \(\frac{360^o}{n}\)
45o = \(\frac{360^o}{n}\)
45on = 360o
n = \(\frac{360^o}{45}\)
= 8
11
14
16
18
Correct answer is A
Volume of cylinder = \(\pi r^2 h\)
= \(\frac{22}{7} \times 14^2\) x 14 x 18 = 22 x 28 x 18
= 11088cm3
1000cm3 = \(\frac{1}{1000}\) x 11088cm3
= 11.088
= 11
One of the factors of (mn - nq - n2 + mq) is (m - n). The other factor is?
(n - q)
(q - n)
(n + q)
(q - m)
Correct answer is C
mn - nq - n\(^2\) + mq
mn - n\(^2\) - nq + mq
(mn - n\(^2\)) (mq - nq)
n(m - n) + q(m - n)
= (n +q) (m - n)