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.
\(\frac{3}{4}\)
\(\frac{1}{2}\)
\(\frac{1}{3}\)
\(\frac{1}{4}\)
Correct answer is D
No. of red = 5
No. of blue = 4
No. of green = 3
Total = 12
Pr(Green) = \(\frac{3}{12} = \frac{1}{4}\)
Find the sum of the interior angle of a pentagon.
340\(^o\)
350\(^o\)
540\(^o\)
550\(^o\)
Correct answer is C
Sum = (5 - ) 180\(^o\)
= (5 - 2) 180\(^o\) = 3 x 180\(^o\)
= 540\(^o\)
The mean of the numbers 15, 21, 17, 26, 18, and 29 is 21. Calculate the standard deviation
9
6
5
0
Correct answer is C
|
x |
x - \(\overline{x}\))\(^2\) | (x - \(\overline{x}\))\(^2\) |
|
15 21 17 26 18 29 |
-6 0 -4 5 -3 -8 |
36 0 16 25 9 64 |
| \(\sum (x - \overline{x})^2\) = 150 |
Standard deviation = \(\sqrt{\frac{ \sum (x - \overline{x})^2}{n} }\)
= \(\frac{150}{6}\)
= \(\sqrt{25}\)
= 5
845,000
600,000
355,000
250,000
Correct answer is C
Angle of Men = 360\(^o\) - (120 + 169)
= 360\(^o\) - 289\(^o\) = 71\(^o\)
No. of men \(\frac{71}{360}\) x 1800,000
= 355,000
In the diagram, PQR is a circle with center O. If ∠OPQ = 48°, find the value of M.
96\(^o\)
90\(^o\)
68\(^o\)
42\(^o\)
Correct answer is A
< O\(Q\)P = 48\(^o\) (base angles of isoceles \(\triangle\))
m = 48\(^o\) + 48\(^o\) = 96\(^o\) (exterior angle of a \(\triangle\))