Mathematics Past Questions

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

50 questions
Question 1 of 20 50 total questions
Question 1
waec 1991

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cm. Which of the following is correct?

AArea BCF = Area DCF
BArea ADE = Area ADF
CArea ADE = Area DCFE
DArea CBF = Area DABC
EArea DABO = Area CFEO
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Question 2
waec 1991
In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cmIf the area of triangle DCF = 24cm2, find the area of the quadrilateral ABCD.
A24cm2
B48cm2
C80cm2
D96cm2
E120cm2
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Question 3
waec 1991

In the diagram above, PQ and XY are two concentric arc; center O, the ratio of the length of the two arc is 1:3, find the ratio of the areas of the two sectors OPQ and OXY

A1:3
B1:6
C1:9
D2:3
E4:9
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Question 4
waec 1991
Find the area of an equivalent triangle of side 16cm
A64√3cm2
B72√3cm2
C96cm2
D128√3cm2
E128cm2
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Question 5
waec 1991

In the diagram above, O is the center of the circle, |SQ| = |QR| and ∠PQR = 68°. Calculate ∠PRS

A34o
B45o
C56o
D62o
E68o
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Question 6
waec 1991
In a given regular polygon, the ratio of the exterior angle to the interior angles is 1:3. How many side has the polygon?
A40
B5
C6
D8
E12
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Question 7
waec 1991

In the diagram above, ∠PTQ = ∠URP = 25° and XPU = 4URP. Calculate ∠USQ.

A100o
B120o
C125o
D130o
E150o
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Question 8
waec 1991

The angles of a pentagon are x°, 2x°, (x + 60)°, (x + 10)°, (x -10)°. Find the value of x.

A40
B60
C75
D80
E90
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Question 9
waec 1991

Which of the following about a rhombus may not be true?

AThe diagonals are equal
BThe diagonals bisect the angles through which they pass
Cthe diagonals bisect each other
DThe adjacent sides are equal
EOpposite angles are equal
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Question 10
waec 1991

Mrs. Jones is expecting a baby. The probability that it will be a boy is 1/2 and probability that the baby will have blue eyes is 1/4. What is the probability that she will have a blue-eyed boy?

A1/8
B1/4
C3/8
D1/2
E3/4
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Question 11
waec 1991

A box contains 2 white and 3 blue identical marbles. If two marbles are picked at random, one after the other without replacement, what is the probability of picking two marbles of different colors?

A2/3
B3/5
C2/5
D7/20
E3/10
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Question 12
waec 1991

If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5, P(X∪Y) is

Ao
B2/15
C4/14
D11/15
E1
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Question 13
waec 1991

If two events are mutually exclusive, their intersection is empty. This means that there are no outcomes that are common to both events. In probability terms, if X and Y are mutually exclusive events, then:

Pr(X ∩ Y) = 0

A0
B2/15
C11/15
D4/15
E1
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Question 14
waec 1991
No. of chairs 1 2 3 4 5 6 7
Frequency 2 7 5 4 9 7 6

Find the median of the distribution

A9
B6.5
C5
D4.5
E4
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Question 15
waec 1991
Find the mode of the distribution
A40
B9
C7
D5
E2
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Question 16
waec 1991

Find the mean of the distribution

A3.5
B4.0
C4.4
D5.0
E5
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Question 17
waec 1991

The mean of 30 observations recorded in an experiment is 5. lf the observed largest value of 34 is deleted, find the mean of the remaining observations

A5
B4
C3.9
D3.4
E3.0
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Question 18
waec 1991

Which of the following is not a measure of dispersion?

AMode
BMean deviation
CRange
Dinterquartile range
EStandard deviation
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Question 19
waec 1991

In a class of 80 students, every student had to study Economics or Geography or both Economics and Geography. lf 65 students studied Economics and 50 studied Geography, how many studied both subjects?

A15
B30
C35
D45
E50
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Question 20
waec 1991

P = {2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∩Q∩R

A(21/2)
B∅
C(1, 3, 7)
D(4)
E(5,7,9)
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