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.
Multiply (3x + 5y + 4z) by (2x - 3y + z)
6x2 + xy - 15y2 + 4z2 + 11xz - 7yz
6x2 + 3xy - 15y2 + 4z2
6x2 + 3xy - y2 + 4z2
6x2 + 3xy - 15y + z2
Correct answer is A
(3x + 5y + 4z)(2x - 3y + z)
6x2 + 9xy + 3x2 + 10xy - 15y2 + 5yz + 8xz - 12yz + 4z2
= 6x2 + xy - 15y2 + 4z2 + 11xz - 7yz
\(\frac{y(y - x)}{y - x}\) cedis
\(\frac{Yy - Xx)}{y - x}\) cedis
\(\frac{Y - Xy)}{y - x}\) cedis
\(\frac{Y - X}{y - x}\) cedis
\(\frac{Y - Xx}{y - x}\) cedis
Correct answer is E
The amount he has to spend per day for the rest of his stay is \(\frac{Y - Xx}{y - x}\) cedis
The solution of the equation x2 - 2x = 8 is
x = 0 or 2
x = -2 or 4
x = 2
x = -4
x = 2 or 4
Correct answer is B
x2 - 2x = 8 = 8
x2 - 2x - 8 = 0
(x2 - 4x) + (2x - 8) = 0
When x + 2 = 0
x = -2, when x - 4 = 0
x = 4
-2 or 4
\(\frac{5}{6}\)
11
3\(\frac{3}{5}\)
2\(\frac{1}{2}\)
1\(\frac{1}{5}\)
Correct answer is D
x \(\alpha\) y = x \(\alpha\) \(\frac{1}{z}\)
x \(\alpha\) \(\frac{1}{z}\)
x = k \(\frac{y}{z}\)
k = \(\frac{xz}{y}\) = \(\frac{9 \times 8}{24}\)
= 3
x = \(\frac{xz}{y}\)
= \(\frac{3 \times 5}{6}\)
= \(\frac{15}{6}\)
= \(\frac{5}{2}\)
= 2\(\frac{1}{2}\)
N5000
N1800
N12000
N24000
N8000
Correct answer is C
A : B = 3 : 5
Total ratio = 3 + 5 = 8
Let rept, the total profit, A receives \(\frac{3x}{8}\)
\(\frac{5x}{8}\) - \(\frac{3}{x}\) = 3000
\(\frac{5x}{8}\) - \(\frac{3x}{8}\) = 3000
= \(\frac{2x}{8}\)
= 3000
2x = 2400
x = 1200
N12,000