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.
15sq.cm
20sq.cm
13sq.cm
16sq.cm
17sq.cm
Correct answer is A
Area of the rectangular picture = L x B = 8 x 6
= 48 sq.cm.
Area of the whole surface (which is gotten by adding \(\frac{1}{2}\) on every side to the original picture size) is 9 x 7 = 63 sq. cm
area of the frame is 63 - 48
= 15 sq. cm
30o
60o
45o
25o
Correct answer is B
Let x rep. the angle of depression of the foot of the tree.
tan 30o = \(\frac{y}{100}\)
y = 100 tan 30o
= 57.8
By Pythagoras, AC2 = 3002 + 582
= 900 + 3354
tan x = \(\frac{opp}{adj}\)
= \(\frac{58}{300}\)
= 0.19
tan x = 0.19
x = tan 0.19
= 60o
If \(\sqrt{3^{\frac{1}{x}}}\) = \(\sqrt{9}\) then the value of x is:
\(\frac{3}{4}\)
\(\frac{4}{3}\)
\(\frac{1}{3}\)
\(\frac{2}{3}\)
\(\frac{1}{2}\)
Correct answer is E
\(\sqrt{3^{\frac{1}{x}}}\) = \(\sqrt{9}\)
3\(^{\frac{1}{2x}}\) = \(9^{\frac{1}{2}}\)
3\(^{\frac{1}{2x}}\) = 3\(^{2 \times \frac{1}{2}}\)
3\(\frac{1}{2x}\) = 3\(\frac{2}{2}\) = 3
\(3^{\frac{1}{2x}}\) = \(3^{1}\)
\(\frac{1}{2x}\) = \(\frac{1}{1}\)
x = \(\frac{1}{2}\)
20 and 45
100 and 150
45 and 65
35 and 75
20 and 60
Correct answer is E
Son = x, Father = 3x, 12 yrs ago
son = x - 12, father = 3x - 12
3x - 12 = 6(x - 12)
3x - 12 = 6x - 72
3x = 60
x = 20
If y = x2 - 2x - 3, Find the least value of y and corresponding value of x
x = 3, y = 3
x = 1, y = -3
x = 4, y = 1
x = 1, y = -4
x = 2, y = -3
Correct answer is D
If the graph of eqn. y = x2 - 2x - 3 is plot and drawn, the lease value of y = -4 while the corresponding value of x = 1
x = 1, y = -4