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.
4cm
32cm
\(\frac{30}{7}\)
\(\frac{40}{7}\)
4.8cm
Correct answer is E
Cos Q = \(\frac{r^2 + p^2 - q^2}{2rp}\)
= \(\frac{10^2 + 8^2 - 6^2}{2(10)(8)}\)
= \(\frac{164 - 36}{160}\)
= \(\frac{128}{160}\)
= 0.8
Q = Cos-1 o.8
= 37o x rep. from rt< RSQ, Let RS = x
\(\frac{x}{sin 37^o}\) = \(\frac{8}{sin 90^o}\)
but sin 90o = 1
x = 8 sin 37o
x = 4.8cm
7.0
2.56
13.48
2.0
0.07
Correct answer is A
(3.2)2 - (1.8)2 = (3.2 + 1.8)(3.2 - 1.8)
= 5 x 1.4
= 7
5544m2
1386m2
132m2
264m2
693m2
Correct answer is E
\(\pi\) = \(\frac{22}{7}\), Diameter D = 42m
Area of a circle = \(\frac{\pi D^2}{4}\) when a diameter is given
area of a semicircle \(\frac{\pi D^2}{4}\) x \(\frac{1}{2}\)
= \(\frac{22}{7}\) x \(\frac{4262}{4}\) x \(\frac{1}{2}\)
= \(\frac{11}{7} \times 441\)
= 693m\(^{2}\)
\((1.28 \times 10^{4}) \div (6.4 \times 10^{2})\) equals
2 x 10-5
2 x 10-1
2 x 101
2 x 10-4
Correct answer is C
\((1.28 \times 10^{4}) \div (6.4 \times 10^{2})\)
= \(\frac{1.28 \times 10^{4}}{6.4 \times 10^{2}}\)
\(\equiv \frac{12.8 \times 10^{3}}{6.4 \times 10^{2}}\)
= \(2 \times 10^{1}\)
The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is
1.5
0.8
1.0
1.02
1.05
Correct answer is E
\(\frac{1.2 + 1.0 + 0.9 + 1.4 + 0.8 + 0.8 + 1.2}{8}\) = \(\frac{8.4}{8}\)
= 1.05