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.
Which of the following is true for the set \(P = \{-3.2\leq x< 5\}\) where x is an integer
least value of x is -3.2
least value of x is -3
greatest value of x is 4.9
greatest value of x is 5
Correct answer is A
No explanation has been provided for this answer.
Simplify \(3\sqrt{45}-12\sqrt{5}+16\sqrt{20}\)leaving your answer in surd form
\(29\sqrt{5}\)
\(14\sqrt{15}\)
\(12\sqrt{15}\)
\(11\sqrt{5}\)
Correct answer is A
\(3\sqrt{45}-12\sqrt{5}+16\sqrt{20}\\
3\sqrt{5\times 9}-12\sqrt{5}+16\sqrt{4\times 5}\\
3\times 3\sqrt{5}-12\sqrt{5}+16\times 2\sqrt{5}\\
9\sqrt{5}-12\sqrt{5}+32\sqrt{5}\\
29\sqrt{5}\)
If \(p\propto \frac{1}{q}\), which of the following is true?
\(\propto p^{2}\)
\(p\propto \frac{1}{q^{2}}\)
\(q\propto \sqrt{p}\)
\(q\propto \frac{1}{p}\)
Correct answer is D
\(p\propto \frac{1}{q} = q \propto \frac{1}{p}\)
Simplify \((0.3\times 10^{5})\div (0.4\times 10^{7})\)leaving your answer in standard form
\(7.5\times 10^{-4}\)
\(7.5\times 10^{-3}\)
\(7.5\times 10^{-2}\)
\(7.5\times 10^{-1}\)
Correct answer is B
\((0.3\times 10^{5})\div (0.4\times 10^{7})\\
\frac{3}{10}\times 10^{5}\div \frac{4}{10}\times 10^{7}=3\times 10^{4}\div 4\times 10^{6}\\
\frac{3\times 10^{4}}{4\times 10^{7}}=\frac{3}{4}\times 10^{-2}=0.75\times 10^{-2}\\
7.5\times 10^{-3}\)
\(2^{2}\times 3^{3}\times 5^{2}\)
\(2^{3}\times 3^{23}\times 5\)
\(2^{2}\times 3^{2}\times 5^{2}\)
\(2^{3}\times 3^{3}\times 5^{2}\)
Correct answer is D
No explanation has been provided for this answer.