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.
1/4
1/3
1/2
3
Correct answer is D
No explanation has been provided for this answer.
If 125\(_x\) = 20\(_10\) find x
2
3
4
5
Correct answer is B
125\(_x\) = 20\(_10\)
1 x X\(^2\) + 2 x X\(^1\) + 5x X \(^0\) = 20
X2 + 2X + 5 = 20
X\(^2\) + 2X - 15 = 0
(X + 5)( X - 3) = 0
X + 5 implies X = -5
X - 3 implies X = 3
But X cannot be negative
∴X = 3
1110112
1101102
1010112
1010102
Correct answer is C
11012 + 101112 + 1112 = 101011
The area of a square is 144 sqcm. Find the length of the diagonal.
13 cm
12√2 cm
12 cm
11√3 cm
Correct answer is B
No explanation has been provided for this answer.
Find the value of \(\frac{tan 60^o - tan 30^o}{tan 60^o + tan 30^o}\)
\(\frac{4}{\sqrt{3}}\)
\(\frac{2}{\sqrt{3}}\)
1
\(\frac{1}{2}\)
Correct answer is D
\(\frac{tan 60^o - tan 30^o}{tan 60^o + tan 30^o}= \frac{\sqrt{3}-\frac{1}{\sqrt{3}}}{\sqrt{3}+\frac{1}{\sqrt{3}}}\\
=\left(\frac{\sqrt{3}\sqrt{3}-1}{\sqrt{3}}\right)\div \left(\frac{\sqrt{3}\sqrt{3}+1}{\sqrt{3}}\right)\\
=\frac{(3-1)}{(3+1)}\\
=\frac{2}{4}=\frac{1}{2}\)