Mathematics Past Questions

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Past Questions

1,853 questions
Question 1 of 20 1,853 total questions
Question 621
waec 2000

Find the equation whose roots are -8 and 5

A\(x^2 + 13x + 40=0\)
B\(x^2 - 13x - 40=0\)
C\(x^2 - 3x +40=0\)
D\(x^2 + 3x - 40=0\)
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Question 622
waec 2000

Form an inequality for a distance d meters which is more than 18m, but not more than 23m

A18 ≤ d ≤ 23
B18 < d ≤ 23
C18 ≤ d < 23
Dd < 18 or d > 23
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Question 623
waec 2000

Simplify \(\frac{1}{x-3}-\frac{3(x-1)}{x^2 - 9}\)

A\(\frac{x-1}{x-3}\)
B\(\frac{-2}{x+3}\)
C\(\frac{x-1}{x+3}\)
D\(\frac{4x}{x^2-9}\)
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Question 624
waec 2000

Given that (2x + 7) is a factor of \(2x^2 + 3x - 14\), find the other factor

Ax + 2
B2 - x
Cx - 2
Dx + 1
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Question 625
waec 2000

If x varies inversely as y and \(x = \frac{2}{3}\) when y = 9, find the value of y when \(x=\frac{3}{4}\)

A\(\frac{1}{18}\)
B\(\frac{8}{81}\)
C\(\frac{9}{2}\)
D8
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Question 626
waec 2000

Given that \(27^{(1+x)}=9,)\ find x

A-3
B\(\frac{-1}{3}\)
C\(\frac{5}{3}\)
D2
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Question 627
waec 2000

Given that x = -\(\frac{1}{2}\) and  y = 4 evaluate 3x\(^2y+xy^2\)

A-5
B-1
C4
D11
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Question 628
waec 2000

In the diagram, POS and ROT are straight lines, OPQR is a parallelogram. |OS| = |OT| and ∠OST = 50°. Calculate ∠OPQ.

A160o
B140o
C120o
D100o
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Question 629
waec 2000

If the interior angles of hexagon are 107°, 2x°, 150°, 95°, (2x-15)° and 123°, find x.

A\(57\frac{1}{2}^{\circ}\)
B\(65^{\circ}\)
C\(106^{\circ}\)
D\(120^{\circ}\)
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Question 630
waec 2000

Each side of a regular convex polygon subtends an angle of 30° at its center. Calculate each interior angle

A75o
B150o
C160o
D68o
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Question 631
waec 2000

In the diagram, PQRS is a circle center O. PQR is a diameter and ∠PRQ = 40°. Calculate ∠QSR.

A30o
B40o
C45o
D50o
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Question 632
waec 2000

Which of the following statement is not true about a rectangle? I.Each diagonal cuts the rectangle into two congruent triangles. II. A rectangle has four lines of symmetry III. The diagonals intersect at right angles

AI and II only
BIII only
CII only
DII and III only
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Question 633
waec 2000

The probabilities that Kodjo and Adoga pass an examination are \(\frac{3}{4}\) and \(\frac{3}{5}\) respectively. Find the probability of both boys failing the examination

A\(\frac{1}{10}\)
B\(\frac{3}{10}\)
C\(\frac{9}{20}\)
D\(\frac{2}{3}\)
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Question 634
waec 2000

Calculate the standard deviation of the following marks; 2, 3, 6, 2, 5, 0, 4, 2

A1.5
B1.7
C1.8
D1.9
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Question 635
waec 2000

The bar chart shows the distribution of marks scored by a group of students in a test. Use the chart to answer the question below
How many students took the test?

A38
B32
C15
D11
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Question 636
waec 2000

The bar chart shows the distribution of marks scored by a group of students in a test. Use the chart to answer the question below
How many students scored 4 marks and above?

A15
B11
C10
D17
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Question 637
waec 2000

In the diagram, AB is a vertical pole and BC is horizontal. If |AC| = 10m and |BC| = 5m, calculate the angle of depression of C from A

A63o
B60o
C45o
D27o
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Question 638
waec 2000

Which of the following bearings is equivalent to S50°W?

A040o
B130o
C220o
D230o
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Question 639
waec 2000

A tree is 8km due south of a building. Kofi is standing 8km west of the tree. Find the bearing of Kofi from the building

A315o
B270o
C225o
D135o
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Question 640
waec 2000

A tree is 8km due south of a building. Kofi is standing 8km west of the tree. How far is Kofi from the building?

A4√2km
B8km
C8√2km
D16km
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