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.
{4, 6, 8, 10}
{1. 4, 6, 8, 10}
{1, 2, 4, 6, 8, 10}
{1, 2, 3, 5, 7, 8, 9}
Correct answer is A
T = {2, 3, 5, 7}
M = {1, 3, 5, 7, 9}
\(\mu\) = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
T\(^{\prime}\) = = {1, 4, 6, 8, 9, 10}
M\(^{\prime}\) = {2, 4, 6, 8, 10}
(T\(^{\prime}\) \(\cap\) M\(^{\prime}\)) = {4, 6, 8, 10}
If 7 + y = 4 (mod 8), find the least value of y, 10 \(\leq y \leq 30\)
11
13
19
21
Correct answer is B
7 + y = 4 (mod 8)
y = 4 - 7 (mod 8)
y = -3 + 8 (mod 8)
y = 5 + 8 (mod 8)
y = 13
Simplify, correct to three significant figures, (27.63)\(^2\) - (12.37)\(^2\)
614
612
611
610
Correct answer is D
(27.63)\(^2\) - (12.37)\(^2\)
= (27.63 + 12.37)(27.63 - 12.37)
= 40 x 15.26
= 610
Solve: \(\frac{y + 1}{2} - \frac{2y - 1}{3}\) = 4
y = 19
y = -19
y = -29
y = 29
Correct answer is B
\(\frac{y + 1}{2} - \frac{2y - 1}{3}\) = \(\frac{4}{1}\)
- \(\frac{3(y + 1) - 2(2y - 1)}{6} = \frac{4}{1}\)
3y + 3 - 4y + 2 = 24
- y + 5 = 24
- y = 24 - 5 = 19
y = - 19
Evaluate: (0.064) - \(\frac{1}{3}\)
\(\frac{5}{2}\)
\(\frac{2}{5}\)
-\(\frac{2}{5}\)
-\(\frac{5}{2}\)
Correct answer is A
(0.064)\(^{- \frac{1}{3}}\)
= (\(\frac{64}{1000}\))\(^{-\frac{1}{3}}\)
= 3\(\sqrt{\frac{1000}{64}}\)
= \(\frac{10}{4}\)
= \(\frac{5}{2}\)