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.
7
6
5
4
Correct answer is C
Profit (P) = 10\(_x\) − \(_x\)2
Maximum profit can be achieved when the differential of profit with respect to number of bags(x) is 0
i.e. \(\frac{dp}{dx}\) = 0
\(\frac{dp}{dx}\) = 10 - 2x = 0
10 = 2x
Then x = \(\frac{10}{2}\) = 5
Answer is C
1000
2000
3000
4000
Correct answer is B
Let the angle for school fees = x°
Then Housing = 2x°
120° + 90° + x° + 2x° = 360°
3x° = 150° \(\implies\) x° = 50°.
Amount spent on housing = \(\frac{100}{360} \times 7200\)
= N2000.
Find the values of x for which \(\frac {x+2}{4}\) - \(\frac{2x - 3}{3}\) < 4
x < 8
x > -6
x < 4
x > -3
Correct answer is B
\(\frac {x+2}{4}\) - \(\frac{2x - 3}{3} < 4\)
\(\frac{3(x + 2) - 4(2x - 3)}{12} < 4\)
\(3x + 6 - 8x + 12 < 48 \)
\(18 - 5x < 48 \implies -5x < 30\)
\(\therefore x > -6\)
4
8
16
20
Correct answer is D
Let the number of people that offer both Mathematics and Physics = y
Then, \((32 - y) + y + (24 - y) + 4 = 40\)
\(60 - y = 40 \implies y = 20\)
\(\therefore\) 20 students offer both Mathematics and Physics.
What is the product of 2x2 − x + 1 and 3 − 2x
4x3 − 8x2 + 5x + 3
−4x3 + 8x2 − 5x + 3
−4x3 − 8x2 + 5x + 3
4x3 + 8x2 − 5x + 3
Correct answer is B
(2x2 - x + 1) × (3 - 2x);
3(2x2 - x + 1) - 2x (2x2 - x + 1)
6x2 - 3x + 3 - 4x3 + 2x2 - 2x
-4x3 + 8x2 -5x + 3