Mathematics Past Questions

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48 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10
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Past Questions

48 questions
Question 1 of 20 48 total questions
Question 1
jamb 1982

TP and TQ are tangents to a circle centre 0, and r is a point on the circumference of the circle as shown in the figure. If angle PTQ = 45º, what is the magnitude of the angle PRO?

A45\(^0\)
B135\(^0\)
C40\(^0\)
D67\(\frac{1}{2}\)\(^0\)
E52\(\frac{1}{2}\)\(^0\)
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Question 2
jamb 1982

In the figure, QRST is a rectangle; PT// QM, angle P = 60o. Find angle MUR

A150o
B30o
C60o
D120o
E90o
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Question 3
jamb 1982
PQRS is a parallelogram with area 50 square cm and the side PQ is 10cm long. T is a point on RS and TF is the altitude of the triangle TPQ. Find TF
A10cm
B12.5cm
C8cm
D6cm
E5cm
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Question 4
jamb 1982
If K is a constant, which of the following equations best describes the parabola?
Ay = kx2
Bx = y2 - k
Cy = k - x2
Dx2 = y2 - k
Ey = (k - x)2
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Question 5
jamb 1982
In the fiqure where PQRTU is a circle, ISTI = IRSI and angle TSR = 52o. Find the angle marked m
A128o
B52o
C104o
D64o
E116o
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Question 6
jamb 1982

The diagram is the distance time graph of a vehicle. Find its average speed in kilometers per hour during the journey

A155km/hr
B50km/hr
C40km/hr
D124km/hr
E84km/hr
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Question 7
jamb 1982
In the diagram, angle QPR = 90o, angle PSR = 90o and PR = 5 units. Find the length of QS.
A5 tan 25o sin 65o
B5 cos 25o sin 65o
C5 tan 25o cos 65o
Dcos 25o cos 65o
E5 cosec 25o
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Question 8
jamb 1982
The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl?
A30 years
B6 years
C9 years
D3 years
E1 year
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Question 9
jamb 1982
Two distinct sectors i the same circle substend 100o and 30o respectively at the centre of the circle. Their corresponding arcs are in ratio
A10:3
B1:100
C3:1
D5:2
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Question 10
jamb 1982

A variable y is inversely proportional to x\(^2\), when y = 10, x = 2. What is y when x = 10?

A2
B4
C100
D0.4
E0.1
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Question 11
jamb 1982
A side of a rhombus is 2cm in length. An angle of the rhombus is 60o. What is the length of the diagonal facing this angle?
A2cm
B8cm
C4cm
D2\(\sqrt{3}\)cm
E16cm
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Question 12
jamb 1982
If the function y = 5x is graphed, what would be its intercept on the y-axis?
A5
B\(\frac{1}{5}\)
C1
D2
Ezero
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Question 13
jamb 1982
Determine the mean monthly salary of 50 employees of a company from the following frequency distribution.
\(\begin{array}{c|c} \text{Monthly salary} & \text{Frequency}\\\hline N200.00 & 10\\ N325.00 & 5\\N100.00 & 20\\N120.00 & 2\\ N60.00 & 10\\ N80.00 & 3\end{array}\)
AN215.30
BN134.10
CN143.10
DN80.00
EN50.30
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Question 14
jamb 1982

Simplify f\(^{\frac{1}{2}}\)g\(^2\)h\(^{\frac{1}{3}}\) \(\div\) f\(^{\frac{5}{2}}\)g\(^o\)h\(^{\frac{7}{3}}\)

A(\(\frac{g}{fh}\))2
Bf2g2h2
C\(\frac{5}{4}\)goh\(\frac{7}{9}\)
D\(\frac{g^2}{f^5h^7}\)
E\(\frac{1}{f^2h^2}\)
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Question 15
jamb 1982
The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are
A(21cm3, 3cm3)
B(24cm3, 3cm3)
C(24cm3, 21cm3)
D(72cm3, 9cm3)
E(63cm3, 9cm3)
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Question 16
jamb 1982

The area of the curved surface of the cone generated by the sector of a circle radius 6cm and arc length 22cm is (\(\pi\) = \(\frac{22}{7}\))

A58 sq.cm
B34 sq.cm
C132 sq.cm
D77 sq.cm
E66 sq.cm
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Question 17
jamb 1982
The solution to the simultaneous equations 3x + 5y = 4, 4x + 3y = 5 is
A(\(\frac{-13}{11}, \frac{1}{11}\))
B(\(\frac{13}{11}, \frac{1}{11}\))
C(\(\frac{13}{11}, \frac{-1}{11}\))
D(\(\frac{11}{13}, \frac{1}{11}\))
E(13, 11)
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Question 18
jamb 1982

A housewife bought 3 kilograms of garri at N13.00 per kg. She deposited N160. 00 for half a cow and bought 24 oranges at 10k each. She came back home with N20.60. She therefore left home with

AN220.00
BN222.00
CN201.40
DN202.00
EN180.80
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Question 19
jamb 1982
The solution to the quadratic equation 5 + 3x - 2x2 = 0 is
A(\(\frac{5}{2}\), 1)
B(5, 3)
C-(\(\frac{5}{2}\), -1)
D(\(\frac{5}{2}\), -1)
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Question 20
jamb 1982
Simplify \(\frac{3}{2x - 1}\) + \(\frac{2 - x}{x - 2}\)
A\(\frac{2 - x}{(2x - 1)(x - 2)}\)
B\(\frac{5 - x}{(2x - 1)(x - 2)}\)
C\(\frac{4 - 2x}{2x - 1}\)
D\(\frac{6 - 3x}{(2x - 1)(x - 2)}\)
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