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.
10010102
10100102
10001102
10001002
Correct answer is B
1100112 + 111112 = 10100102
Evaluate \(\frac{2}{6-5\sqrt{3}}\)
\(-\left(\frac{12}{39}-\frac{10\sqrt{3}}{39}\right)\)
\(\frac{12}{39}-\frac{10\sqrt{3}}{39}\)
\(-\left(\frac{12}{39}+\frac{10\sqrt{3}}{39}\right)\)
\(\frac{12}{39}+\frac{10\sqrt{3}}{39}\)
Correct answer is A
\(\frac{2}{6-5\sqrt{3}} = \frac{2}{6-5\sqrt{3}} \times \frac{6+5\sqrt{3}}{6+5\sqrt{3}}\\
=\frac{2(6+5\sqrt{3})}{(6-5\sqrt{3})(6+5\sqrt{3})}\\
=\frac{12+10-\sqrt{3}}{36-25(3)}\\
=\frac{12+10-\sqrt{3}}{36-75}\\
=\frac{12+10-\sqrt{3}}{-39}\\
=-\left(\frac{12}{39}-\frac{10\sqrt{3}}{39}\right)\)
N500
N552
N255
N525
Correct answer is D
N20,000 - N10,000 = N10,000
1st tax on N5000 at N50 per N1000
= 5*50 = N250
2nd tax on the remaining N5000 at N55 per N1000 = 5*55 = N275
Total tax paid = N250 + N275
= N525
30%
10%
50%
14%
Correct answer is B
No explanation has been provided for this answer.
If (K2)\(_6\) * 3\(_6\) = 3\(_5\)(K4)\(_5\), what is the value of k?
1
4
3
2
Correct answer is D
(K2)\(_6\) * 3\(_6\) = 3\(_5\)(K4)\(_5\)
(K*6\(^1\) + 2*6\(^0\)) 3*6\(^0\) = 3*5\(^0\)(K*5\(^1\) + 4*5\(^0\))
3(6K + 2) = 3(5K + 4)
6K + 2 = 5K + 4
6K - 5K = 4 - 2
K = 2