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.
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 B
p = {-3.2.....4.9}; Since x is an integer
least value of x is -3
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\(\sqrt{15}\)
Correct answer is A
3 \(\sqrt{45} - 12\sqrt{5} + 16\sqrt{20}\)
= 3 x \(\sqrt{9 \times 5} - 12 \times \sqrt{5} + 16 \times \sqrt{4 \times 5}\)
= 3 x 3 x \(\sqrt{5} - 12 \times \sqrt{5} + 16 \times 2 \times \sqrt{5}\)
= 9\(\sqrt{5} - 2 \sqrt{5} + 32 \sqrt{5}\)
= 9\(\sqrt{5} + 32\sqrt{5} - 12\sqrt{5}\)
= 29\(\sqrt{5}\)
If p \(\alpha \frac{I}{Q}\) which of the following is true?
q \(\alpha p^2\)
q \(\alpha \frac{1}{p^2}\)
q \(\alpha \sqrt{p}\)
q \(\alpha \frac{1}{p}\)
Correct answer is D
p \(\alpha \frac{I}{Q}\); p \(\frac{k}{q}\) (where k is constant)
q = \(\frac{k}{p}\)
q \(\alpha \frac{1}{p}\)
Simplify(0.3 x 105) \(\div\) (0.4 \(\times\) 107), leaving you answer in the standard form.
7.5 x 10-4
7.5 x 10-3
7.5 x 10-2
7.5 x 10-1
Correct answer is B
\(\frac{0.3 \times 10^5}{0.4 \times 10^7} = \frac{3 \times 10^{-1} \times 10^{5}}{4 \times 10^{-1} \times 10^7}\)
\(\frac{3 x 10^4}{4 x 10^4}\)
\(\frac{3}{4}\) x 104-6 = 0.75 x 10-2
= 7.5 x 10-3
Find the LCM of 23 x 3 x 52, 2 x 32 x 5 and 23 x 33 x 5
22 x 33 x 52
23 x 33 x 5
22 x 32 x 52
23 x 33 x 52
Correct answer is D
23 x 3 x 52
2 x 32 x 5
22 x 33 x 5
The L.C.M = 22 x 33 x 52