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.
#60,000.00
#120,000.00
#24,000.00
#18,000.00
Correct answer is A
No explanation has been provided for this answer.
make u the subject in x =\(\frac{2u-3}{3u + 2}\)
u = \(\frac{2x + 3}{3x - 2}\)
u = \(\frac{2x - 3}{3x - 2}\)
u = \(\frac{2x + 3}{2 - 3x}\)
u = \(\frac{2x + 3}{3x + 2}\)
Correct answer is C
x =\(\frac{2u-3}{3u + 2}\)
cross multiply
x(3u + 2) = 2u - 3
3ux + 2x = 2u - 3
collect like terms of u
2x + 3 = 2u - 3ux
\(\frac{2x + 3}{2 - 3x}\) = u
60°
40°
90°
120°
Correct answer is A
In a polygon with n sides, the sum of the angles =
(n - 2)180, where n = the number of sides.
In our problem, n = k.
So, we have:
(3k - 10)90 = (k - 2)180
270k - 900 = 180k - 360
Simplifying:
90k = 540
k = 6. So, we have a regular hexagon.
Now, each exterior angle = 360/n
We have: 360/6 = 60
Conclusion: Each exterior angle is 60 degrees.
In the diagram, ∠ABC and ∠BCD are right angles, ∠BAD = t and ∠EDF = 70°. Find the value of t.
70°
165°
140°
110°
Correct answer is D
Vertically opp angles are equal ∠CDE = 70°
Sum of interior angles in a quadilateral = 360°
(90 + 90 + 70 + t)° = 360°
t° = 360° - 250°
t° = 110°
If 4x+2y=16 and 6x-2y=4 , find the value of (y-x).
8
2
4
6
Correct answer is B
Using elimination method:
4x+2y=16 * 6 --> 24x +12y=96 ... eqn iii
6x-2y=4 * 4 --> 24x - 8y = 16 ... eqn iv
Subtract eqn iv from iii
20y = 80
y = 4
Subst. y for 4 in 4x + 2y = 16
--> 4x + 2(4) = 16
--> 4x = 16 - 8
--> 4x = 8
--> x = 2
: The value of (y-x) is 4 - 2 = 2