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.
66m3
84m3
132m3
168m3
264m3
Correct answer is C
Area of trapezium = 1/2(a+b)h
= 1/2(4 + 7)x4 = 22m2
volume = 22 x 6 = 132m3
What is the probability of having an odd number in a single toss of a fair die?
1/6
1/3
1/2
2/3
5/6
Correct answer is C
n(S) = 6(odd) = {1, 3, 5}
n(odd) = 3
pr(odd) = \(\frac{n(odd)}{n(S)}\) 3/6 =1/2
A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate her percentage error
10%
7%
8.0%
2.4%
10%
Correct answer is C
Error = 1.25 - 1.15 = 0.10
0.10/1.25
* 100 = 8.0%
Find the quadratic equation whose roots are x = -2 or x = 7
x2 + 2x - 7 = 0
x2 - 2x + 7 = 0
x2 + 5 +14 = 0
x2 - 5x - 14 = 0
x2 + 5x - 14 = 0
Correct answer is D
x + 2 and x - 7 are factors
(x+2)(x+7) = 0
x(x-7) + 2(x-7) = 0
x2 - 7x + 2x - 14 = 0
x2 - 5x - 14 = 0
x = 1
x = -1
y = 1
y = -1
x + y = 1
Correct answer is C
The linear equation will be the difference between the equation.
y=x2 + 4x - 6 and x2 + 4x - 7 = 0
y=x2 + 4x - 6, ( 0 = x2 + 4x - 7)
y = -(-1) y = 1