Mathematics Past Questions

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Past Questions

2,359 questions
Question 1 of 20 2,359 total questions
Question 831
jamb 1992
a student blows a balloon and its volume increases at a rate of \(\pi\)(20 - t2)cm3S-1 after t seconds. If the initial volume is 0 cm3, find the volume of the balloon after 2 seconds
A37.00\(\pi\)
B37.33\(\pi\)
C40.00\(\pi\)
D42.67\(\pi\)
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Question 832
jamb 1992

Obtain a maximum value of the function f(x) x\(^3\) - 12x + 11

A-5
B-2
C2
D27
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Question 833
jamb 1992

Ice forms on a refrigerator ice-box at the rate of (4 - 06t)g per minute after t minutes. If initially there are 2g of ice in the box, find the mass of ice formed in 5 minutes

A19.5
B17.0
C14.5
D12.5
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Question 834
jamb 1992

If y = x sin x, Find \(\frac{d^2 y}{d^2 x}\)

A2 cosx - x sinx
Bsinx + x cosx
Csinx - x cosx
Dx sinx - 2 cosx
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Question 835
jamb 1992

Evaluate \(\lim \limits_{x \to 2} \frac{(x - 2)(x^2 + 3x - 2)}{x^2 - 4}\)

A7
B2
C3
D4
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Question 836
jamb 1992

Given that \(\theta\) is an acute angle and sin \(\theta\) = \(\frac{m}{n}\), find cos \(\theta\)

A\(\frac{\sqrt{n^2 - m^2}}{m}\)
B\(\frac{\sqrt{(n + m)(n - m)}}{n}\)
C\(\frac{m}{\sqrt{n^2 - m^2}}\)
D\(\sqrt{\frac{n}{n^2 - m^2}}\)
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Question 837
jamb 1992
find then equation line through (5, 7) parallel to the line 7x + 5y = 12
A5x + 7y = 120
B7x + 5y = 70
Cx + y = 7
D15x + 17y = 90
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Question 838
jamb 1992

What is the perpendicular distance of a point (2, 3) from the line 2x - 4y + 3 = 0?

A\(\frac{\sqrt{5}}{2}\)
B\(\frac{\sqrt{5}}{20}\)
C\(\frac{5}{\sqrt{13}}\)
D6
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Question 839
jamb 1992
The locus of a point which is equidistant from two given fixed points is the
Aperpendicular bisector of the straight line joining them
Bparallel line to the straight line joining them
Ctransverse to the straight line joining them
Dangle bisector of 90o which the straight line joining them makes with the horizontal
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Question 840
jamb 1992

X is a point due east of point Y on a coast: Z is another point on the coast but 6√3km due south of y.

If the distance XZ is 12Km. Calculate the bearing of Z from X

A240o
B210o
C150o
D60o
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Question 841
jamb 1992

If in the diagram, FG is parallel to KM, find the value of x

A75o
B95o
C105o
D125o
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Question 842
jamb 1992

Determine the distance on the earth's surface between two town P (lat 60°N, Long 20°E) and Q(Lat 60°N, Long 25°W) (Radius of the earth = 6400km)

A\(\frac{800\pi}{9}\)km
B\(\frac{800\sqrt{3\pi}}{9}\)km
C800\(\pi\) km
D800\(\sqrt{3\pi}\) km
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Question 843
jamb 1992

If the angles of quadrilateral are (p + 10)°, (2p - 30)°, (3p + 20)° and 4p°, find p.

A63
B40
C36
D28
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Question 844
jamb 1992
p = \(\begin{vmatrix} x & 3 & 0 \\ 2 & y & 3\\ 4 & 2 & 4 \end{vmatrix}\)

Q = \(\begin{vmatrix} x & 2 & z \\ 3 & y & 2\\ 0 & 3 & z \end{vmatrix}\)
PQ is equivalent to
APPT
Bpp-1
Cqp
Dpp
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Question 845
jamb 1992
p = \(\begin{vmatrix} x & 3 & 0 \\ 2 & y & 3\\ 4 & 2 & 4 \end{vmatrix}\)

Q = \(\begin{vmatrix} x & 2 & z \\ 3 & y & 2\\ 0 & 3 & z \end{vmatrix}\) Where pT is the transpose P calculate /pT/ when x = 0, y = 1 and z = 2
A48
B24
C-24
D-48
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Question 846
jamb 1992

If the binary operation \(\ast\) is defined by m \(\ast\) n = mn + m + n for any real number m and n, find the identity of the elements under this operation

Ae = 1
Be = -1
Ce = -2
De = 0
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Question 847
jamb 1992
For an arithmetical sequence, the first term is 2 and the common difference is 3. Find the sum of the first 11 terms
A157
B187
C197
D200
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Question 848
jamb 1992

What is the n-th term of the sequence 2, 6, 12, 20...?

A4n - 2
B2(3n - 1)
Cn2 + n
Dn2 + 3n + 2
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Question 849
jamb 1992
Find the sum to infinity to the following series 3 + 2 + \(\frac{4}{3}\) + \(\frac{8}{9}\) + \(\frac{16}{17}\) + .....
A1270
B190
C18
D9
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Question 850
jamb 1992

Find all values of x satisfying the inequality -11 \(\leq\) 4 - 3x \(\leq\) 28

A-5 \(\leq\) x \(\geq\) 8
B5 \(\leq\) x \(\leq\) 8
C-8 \(\leq\) x \(\leq\) 5
D-5 < x \(\leq\) 8
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