Mathematics Past Questions

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

135 questions
Question 1 of 20 135 total questions
Question 41
waec 2001

If N varies directly as M and N = 8 when M = 20 find M when N = 7

A13
B15
C\(17\frac{1}{2}\)
D\(18\frac{1}{2}\)
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Question 42
waec 2001

In a class of 80 students, every students studies Economics or Geography or both. If 65 students study Economics and 50 study Geography, how many study both subjects?

A15
B30
C35
D45
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Question 43
waec 2001

Evaluate \(log_{10}5 + log_{10}20\)

A2
B3
C4
D5
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Question 44
waec 2001

Evaluate \((20_{three})^2 - (11_{three})^2\) in base three

A101
B121
C202
D2020
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Question 45
waec 2001

Which of the following correctly expresses 48 as a product of prime factors?

A3 x 4 x 4
B2 x 3 x 8
C2 x 2 x 2 x 3 x 4
D2 x 2 x 2 x 2 x 3
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Question 46
jamb 2001

A man saves N 100.00 in his first year of work and each year saves N 20.00 more in the preceding year. In how many years will he save N 5800.00?

A58 years
B100 years.
C20 years
D29 years
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Question 47
jamb 2001

If P = \(\begin{pmatrix}3 & -2 & 4\\5 & 0 & 6\\7 & 5 & -1\end{pmatrix}\), then -2P is 

A\(\begin{pmatrix}-6 & -4 & 2\\-10 & -2 & -12\\-14 & -10 & -2\end{pmatrix}\)
B\(\begin{pmatrix}-6 & 4 & -8\\-10 & 0 & -12\\-14 & -10 & 2\end{pmatrix}\)
C\(\begin{pmatrix}-6 & 4 & -8\\5 & 0 & 6\\7 & 5 & -1\end{pmatrix}\)
D\(\begin{pmatrix}-6 & 4 & -8\\-10 & 0 & 6\\-14 & 5 & -1\end{pmatrix}\)
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Question 48
jamb 2001

Given the matrix K = \(\begin{pmatrix}2 & 1\\3 & 4\end{pmatrix}\), the matrix K\(^2\)  + K + I, where I is the 2 x 2 identity matrix, is 

A\(\begin{pmatrix}6 & 3\\3 & 20\end{pmatrix}\)
B\(\begin{pmatrix}9 & 8\\22 & 23\end{pmatrix}\)
C\(\begin{pmatrix}10 & 7\\21 & 24\end{pmatrix}\)
D\(\begin{pmatrix}7 & 2\\12 & 21\end{pmatrix}\)
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Question 49
jamb 2001

Evaluate \(\begin{vmatrix}-1 & -1 & -1\\3 & 1 & -1\\1 & 2 & 1\end{vmatrix}\)

A-4
B-12
C4
D-2
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Question 50
jamb 2001

Find the integral values of x and y satisfying the inequality 3y + 5x \(\leq\) 15, given that y > 0, y < 3, and x > 0.

A( 1, 1), (1, 2), (2, 1)
B( 1, 1), (1, 3), (2, 2)
C( 1, 1), (1, 2) (1, 3)
D( 1, 1), (1, 3), (2, 1)
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Question 51
jamb 2001

The histogram shows the distribution of passengers in taxis at a certain motor park. How many taxis have more than 4 passengers?

A17
B16
C15
D14
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Question 52
jamb 2001

The graph shows the cumulative frequency of the distribution of masses of fertilizer for 48 workers in one institution. Which of the following gives the inter-quartile range?

A\(\frac{1}{2}(Q_3 - Q_1)\)
BQ3 - Q2
CQ3 - Q2
DQ3 - Q1
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Question 53
jamb 2001
The bar chart shows different colours of cars passing a particular point of a certain street in two minutes. What fraction of the cars is yellow
A\(\frac{1}{5}\)
B\(\frac{2}{25}\)
C\(\frac{4}{15}\)
D\(\frac{3}{25}\)
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Question 54
jamb 2001
Find the value of \(\theta\) in the diagram
A60o
B100o
C120o
D30o
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Question 55
jamb 2001

In the figure PQR a straight line segment, PQ = QT. Triangle PQT is an isosceles triangle, < SRQ is 75º and < QPT IS 25º. Calculate the value of < RST

A50o
B25o
C55o
D45o
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Question 56
jamb 2001

The bar chart above shows different colours of passing a particular point of a certain street in two minutes. What fraction of the total number of cars is yellow?

A3/25
B2/25
C1/5
D4/15
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Question 57
jamb 2001
⊗ k l m
k l m k
l m k l
m k l m


The identity element with respect to the multiplication shown in the table above is

Ao
Bm
Cl
Dk
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Question 58
jamb 2001

Triangle SPT is the solution of the linear inequalities

A2y - x - 2 ≤ 0, y + 2x + 2 ≥ 0, -2 ≤ x ≤ - 1
B-2 ≤ x ≤ 2, y ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
C2y - x - 2 ≤ 0, y + 2x + 2 ≤ 0, y ≥ 0, x ≤ 0
D2y - x - 2 ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
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Question 59
jamb 2001

Find the range of \(\frac{1}{6}\), \(\frac{1}{3}\), \(\frac{3}{2}\), \(\frac{2}{3}\), \(\frac{8}{9}\), and \(\frac{4}{3}\)

A3/4
B5/6
C7/6
D4/3
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Question 60
jamb 2001

Find the number of ways of selecting 8 subjects from 12 subjects for an examination

A490
B495
C496
D498
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