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.
r(35 + q)
q(35r - q)
q(35 + r)
r(35 + 2q)
Correct answer is D
The cost of normal work = 35r
The cost of overtime = q x 2r = 2qr
The man's total weekly earning = 35r + 2qr
= r(35 + 2q)
N62.50
N35.00
N31.00
N25.00
Correct answer is D
V\(\pi\)r2h = \(\pi\)(3)2(10) = 90\(\pi\)cm3
V = \(\pi\)(5)2 x 18 = 450\(\pi\)cm3
No of volume = \(\frac{450\pi}{90\pi}\)
= 5
selling price = 5 x N15 = N75
profit = N75 - N50 = N25.00
Find the value of k if \(\frac{k}{\sqrt{3} + \sqrt{2}}\) = k\(\sqrt{3 - 2}\)
3
2
\(\sqrt{3}\)
\(\sqrt 2\)
Correct answer is D
\(\frac{k}{\sqrt{3} + \sqrt{2}}\) = k\(\sqrt{3 - 2}\)
\(\frac{k}{\sqrt{3} + \sqrt{2}}\) x \(\frac{\sqrt{3} - \sqrt{2}}{\sqrt{3} - \sqrt{2}}\)
= k\(\sqrt{3 - 2}\)
= k(\(\sqrt{3} - \sqrt{2}\))
= k\(\sqrt{3 - 2}\)
= k\(\sqrt{3}\) - k\(\sqrt{2}\)
= k\(\sqrt{3 - 2}\)
k2 = \(\sqrt{2}\)
k = \(\frac{2}{\sqrt{2}}\)
= \(\sqrt{2}\)
2, 3
3, 2
-2, -3
-3, -2
Correct answer is C
log4(y - 1) + log4(\(\frac{1}{2}\)x) = 1
log4(y - 1)(\(\frac{1}{2}\)x) \(\to\) (y - 1)(\(\frac{1}{2}\)x) = 4 ........(1)
log2(y + 1) + log2x = 2
log2(y + 1)x = 2 \(\to\) (y + 1)x = 22 = 4.....(ii)
From equation (ii) x = \(\frac{4}{y + 1}\)........(iii)
put equation (iii) in (i) = y (y - 1)[\(\frac{1}{2}(\frac{4}{y - 1}\))] = 4
= 2y - 2
= 4y + 4
2y = -6
y = -3
x = \(\frac{4}{-3 + 1}\)
= \(\frac{4}{-2}\)
X = 2
therefore x = -2, y = -3
If b3 = a-2 and c\(\frac{1}{3}\) = a\(\frac{1}{2}\)b, express c in terms of a
a-\(\frac{1}{2}\)
a\(\frac{1}{3}\)
a\(\frac{3}{2}\)
a\(\frac{2}{3}\)
Correct answer is A
c\(\frac{1}{3}\) = a\(\frac{1}{2}\)b
= a\(\frac{1}{2}\)b x a-2
= a-\(\frac{3}{2}\)
= (c\(\frac{1}{3}\))3
= (a-\(\frac{3}{2}\))\(\frac{1}{3}\)
c = a-\(\frac{1}{2}\)