Mathematics JAMB, WAEC, NECO AND NABTEB Official Past Questions

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22

In the diagram above, |PQ| = |PR| = |RS| and ∠RSP = 35°. Find ∠QPR

  • A. 70o
  • B. 50o
  • C. 45o
  • D. 40o
  • E. 35o
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23

Find the curved surface area of a cone of radius 3cm and slant height 7cm (\(take \pi = \frac{22}{7}\)

  • A. \(22cm^2\)
  • B. \(44cm^2\)
  • C. \(66cm^2\)
  • D. \(132cm^2\)
  • E. \(198cm^2\)
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24

The diagonal and one side of a square are x and y units respectively. Find an expression for y in terms of x

  • A. \(y=\frac{x}{2}\)
  • B. \(y\frac{x}{\sqrt{2}}\)
  • C. \(y=\sqrt{x}\)
  • D. \(y=\sqrt{\frac{x}{2}}\)
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25

Find the angle x in the diagram above

  • A. 310o
  • B. 230o
  • C. 190o
  • D. 130o
  • E. 100o
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26

Find the value of x in the diagram above

  • A. 8.0cm
  • B. 6.8cm
  • C. 6.6cm
  • D. 6.5cm
  • E. 5.6cm
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27

In \(\triangle PQR\). T is a point on QR such that \(\angle QPT = 39^o and \angle PTR = 83^o. Calculate \angle PQT\)

  • A. \(34^o\)
  • B. \(44^o\)
  • C. \(45^o\)
  • D. \(97^o\)
  • E. \(107^o\)
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28

The diagram above is a rectangle. If the perimeter is 36m, find the area of the rectangle

  • A. \(64m^2\)
  • B. \(65m^2\)
  • C. \(84m^2\)
  • D. \(124m^2\)
  • E. \(275m^2\)
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29

The pie chart above show the distribution of how students travelled to a certain school on a particular day. Use this information to answer the question below
What percentage, to the nearest whole number, of tghe students travelled to school on foot?

  • A. 24%
  • B. 23%
  • C. 20%
  • D. 15%
  • E. 14%
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30

The pie chart above show the distribution of how students travelled to a certain school on a particular day. Use this information to answer the question below
If a hundred students travelled by bus, find the total number of students in the school

  • A. 300
  • B. 400
  • C. 500
  • D. 600
  • E. 750
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31

The length of an arc of a circle of radius 5cm is 4cm. Find the area of the sector

  • A. \(1\frac{3}{5}cm^2\)
  • B. 2cm2
  • C. 8cm2
  • D. 10cm2
  • E. 20cm2
View Answer & Discuss WAEC 1998
32

Calculate the perimeter of the trapezium PQRS

  • A. 24cm
  • B. 36cm
  • C. 48cm
  • D. 72cm
  • E. 520cm
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33

In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50o. Use the diagram to answer question below. (take π = 3.142)
Calculate, correct to three significant figures, the area of sector OPQ

  • A. 3.403cm2
  • B. 5.350cm2
  • C. 10.99cm2
  • D. 157.1cm2
  • E. 175.0cm2
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34

In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50o. Use the diagram to answer question below. (take π = 3.142)
Calculate correct to one decimal place, the length of arc PQ.

  • A. 175.0cm
  • B. 157.1cm
  • C. 37.7cm
  • D. 11.0cm
  • E. 3.1cm
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35

In the diagram PQ is a diameter of circle PMQN center O, if ∠PQM = 63o, find ∠MNQ

  • A. 58.5o
  • B. 44o
  • C. 35o
  • D. 31.5o
  • E. 27o
View Answer & Discuss WAEC 1998
36

If the exterior angles of quadrilateral are yo, (y + 5)o, (y + 10)o and (y + 25)o, find y

  • A. 10o
  • B. 20o
  • C. 40o
  • D. 60o
  • E. 80o
View Answer & Discuss WAEC 1998
37

In the diagram, O is the center of the circle and the reflex angle ROS is 264o. Find ∠RTS

  • A. 48o
  • B. 53o
  • C. 66o
  • D. 132o
  • E. 192o
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38

Two chords PQ and RS of a circle intersected at right angles at a point inside the circle. If ∠QPR = 35o,find ∠PQS

  • A. 35o
  • B. 45o
  • C. 55o
  • D. 70o
  • E. 90o
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39

A chord of circle of radius 26cm is 10cm from the center of the circle. calculate the length of the chord

  • A. 16cm
  • B. 27.86cm
  • C. 32cm
  • D. 48cm
  • E. 55.72cm
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40

A ladder 5cm long long rest against a wall such that its foot makes an angle 30o with the horizontal. How far is the foot of the ladder from the wall?

  • A. \(\frac{5\sqrt{2}}{3}m\)
  • B. \(2\frac{1}{2}m\)
  • C. \(\frac{5\sqrt{3}}{2}m\)
  • D. \(\frac{10\sqrt{3}}{3}m\)
  • E. \(10\sqrt{3}m\)
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41

Find the value of X if \(cos x = \frac{5}{8}\) for \(0^o\le X\le 180^o\)

  • A. 141.3o
  • B. 128.7o
  • C. 51.3o
  • D. 48.7o
  • E. 38.7o
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42

In \(sin(X+30)^o=cos40^o\),find X

  • A. 10o
  • B. 20o
  • C. 50o
  • D. 60o
  • E. 90o
View Answer & Discuss WAEC 1998