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.
An equilateral triangle has a side 2 cm. Calculate the height of the triangle.
5cm
\(\sqrt5\)cm
3cm
\(\sqrt{ 3}\)cm
Correct answer is D
using Pythagoras theorem
H = \(\sqrt{ 2^2 - 1^2}\)
= \(\sqrt{ 4 - 1}\)
= \(\sqrt3\)cm
Factorize completely: \(x^2 - (y + z)^2\)
(x - y - z)(x - y - z)
(x + y + z)(x - y - z)
(x + y + z)(x + y - z)
(x + y - z)(x - y + z)
Correct answer is B
\(x^2 - (y + z)^2\)
Using difference of two squares (\(a^2 - b^2 = (a + b)(a - b)|)
⇒ (x + (y + z))(x - (y + z))
⇒ (x + y + z)(x - y - z)
How many students scored at least 3 marks?
44
52
38
18
Correct answer is A
Number of students that scored at least 3 marks = 9 + 1 + 12 + 7 + 5 + 10 = 44
What percentage of the students scored at most 5 marks?
58.5%
63.2%
38.3%
41.5%
Correct answer is A
Number of students that scored at most 5 marks = 12 + 1 + 9 + 6 + 3 = 31
% of student = \(\frac{31}{53} \times 100%\) = 58.5%
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