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.
N32.00
N320.00
N420.00
N1680.00
Correct answer is B
Let his assistant work for x days
∴ his master worked (x + 10) day. Amount received by master = 40(x + 10),
amount got by his assistance = 10x
Total amount collected = N2000.00
∴ 40(x + 10) + 10x = 2000
= 40x + 400 + 10x
= 2000
50x + 400 = 2000
50x = 2000 - 400
50x = 1600
x = \(\frac{1600}{50}\)
x = 32 days
The perimeter of a rectangular lawn is 24m. If the area of the lawn is 35m2; how wide is the lawn?
5cm
7m
12m
14m
Correct answer is A
No explanation has been provided for this answer.
Find the solution of the equation x - 8\(\sqrt{x}\) + 15 = 0
3, 5
-3, -5
9, 25
-9, 25
Correct answer is C
x - 8\(\sqrt{x}\) + 15 = 0
x + 15 = 8\(\sqrt{x}\)
square both sides = (x + 15)2 = (8 \(\sqrt{x}\)2
x2 + 225 + 30x = 64x
x2 + 225 + 30x - 64x = 0
x2 - 34x + 225 = 0
(x - 9)(x - 25) = 0
x = 9 or 25
What must be added to 4x2 - 4 to make it a perfect square?
\(\frac{-1}{x^2}\)
\(\frac{1}{x^2}\)
1
-1
Correct answer is B
(2x \(\frac{-1}{4}\)2 = 4x2 + \(\frac{1}{x^2}\) - 4
what must be added is +\(\frac{1}{x^2}\)
If x + \(\frac{1}{x}\) = 4, find x2 + \(\frac{1}{x^2}\)
16
14
12
9
Correct answer is B
x + \(\frac{1}{x}\) = 4, find x2 + \(\frac{1}{x^2}\)
= (x + \(\frac{1}{x}\))2 = x2 + \(\frac{1}{x^2}\) + 2
x2 + \(\frac{1}{x^2}\) = ( x + \(\frac{1}{x^2}\))2 - 2
= (4)2 - 2
= 16 - 2
= 14