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.
If 2x + y = 10, and y \(\neq\) 0, which of the following is not a possible value of x?
4
5
8
10
Correct answer is B
The value for which the equation is impossible
2x = 10 (if y = 0)
x = 5
N16,200
N1,4,200
12,000
8000
Correct answer is A
D = P(I - \(\frac{R}{100}\))n where P = N20,000; R = 10%, n = 2
D = 20,000(I - \(\frac{10}{100}\))2
= 20000(0.9)2
20,000 x 0.81 = N16,200
N676.50
N820
N1,640
N4,920
Correct answer is C
I = N123; R = 3%' T = 2\(\frac{1}{2}\) yrs; P = \(\frac{100 \times 1}{RT}\)
P = \(\frac{100 \times 123}{3 \times 2.5}\)
principal(P) = N1640
What is the place value of 9 in the number 3.0492?
\(\frac{9}{10000}\)
\(\frac{9}{1000}\)
\(\frac{9}{100}\)
\(\frac{9}{10}\)
Correct answer is B
Place value of 9 in 3.0492
= 0.009
= \(\frac{9}{1000}\)
Given that (2x - 1)(x + 5) = 2x2 - mx - 5, what is the value of m
11
5
-9
-10
Correct answer is C
(2x - 1)(x + 5) = 2x2 - mx - 5
2x2 + 10x - x - 5
= 2x2 + 9x - 5 = 2x2 - mx - 5
comparing the co-efficient of x
-m = 9
m = -9