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.
If x =3, y = 2 and z = 4 what is the value of \(3x^{2}-2y+z\)
17
27
35
71
Correct answer is B
\(3x^{2}-2y+z=3(3)^{2}-2(2)+4=27-4+4=27\)
For what value of x is the expression \(\frac{2x-1}{x+3}\)not defined?
3
2
1/2
-3
Correct answer is D
x + 3 = 0 => x = -3
I am x years old and my brother is 3 years older how old was my brother last year
(x - 4) years
(x + 2) years
(3x - 1) years
(3x + 1) years
Correct answer is B
If I am x years old, then my brother will be (x + 3)years old then last year my brother was (x + 3) - 1 = (x + 2)years old
N80,000
N40,000
N20,000
N10,000
Correct answer is B
\(Abu = 2x\\
Kayode = x\\
Uche = \frac{x}{2}\\
2x+x+\frac{x}{2}=140,000\\
\frac{7x}{2}=140,000\\
7x = 280,000\\
x=\frac{280,000}{7}\\
x=40,000\)Kayode receives N40,000
Simplify\(\frac{3x^{3}}{(3x)^{3}}\)
1
\(\frac{1}{3}\)
\(\frac{1}{9}\)
\(\frac{1}{27}\)
Correct answer is C
\(\frac{3x^{3}}{(3x)^{3}}\\
\frac{3x^{3}}{3x\times 3x\times 3x}=\frac{3\times x\times x\times x}{3\times 3\times 3\times x\times x\times x}=\frac{1}{9}\)