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2,359 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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2,359 questions

Question 1 of 20 2,359 total questions

Question 631

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 632

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 633

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 634

jamb 2001

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

A-4

B-12

D-2

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Question 635

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 636

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 637

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 638

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 639

jamb 2001

Find the value of \(\theta\) in the diagram

A60^o

B100^o

C120^o

D30^o

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Question 640

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

A50^o

B25^o

C55^o

D45^o

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Question 641

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 642

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

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Question 643

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 644

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 645

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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Question 646

jamb 2001

Find the variance of 2, 6, 8, 6, 2 and 6

C√6

D√5

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Question 647

jamb 2001

If ⁶P_r = 6, find the value of ⁶P_r+1

A30

B33

C35

D15

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Question 648

jamb 2001

Teams P and Q are involved in a game of football. What is the probability that the game ends in a draw?

A2/3

B1/2

C1/3

D1/4

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Question 649

jamb 2001

Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. The mean score is

A7.0

B8.7

C9.5

D11.0

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Question 650

jamb 2001

Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. Find the square of the mode.

A49

B121

C25

D64

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