Mathematics Past Questions

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

130 questions
Question 1 of 20 130 total questions
Question 31
jamb 2019

Given the matrix \(A = \begin{vmatrix} 3 & -2 \\ 1 & 6 \end{vmatrix}\). Find the inverse of matrix A.

A\(\begin{vmatrix} 6 & 2 \\ 1 & 6 \end{vmatrix}\)
B\(\begin{vmatrix} \frac{2}{11} & \frac{1}{12}\\ \frac{3}{20} & \frac{1}{10} \end{vmatrix}\)
C\(\begin{vmatrix} -3 & 2 \\ -1 & -6 \end{vmatrix}\)
D\(\begin{vmatrix} \frac{3}{10} & \frac{1}{10} \\ \frac{-1}{20} & \frac{3}{20}\end{vmatrix}\)
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Question 32
jamb 2019

If \(\begin{vmatrix} 2 & -5 & 3 \\ x & 1 & 4 \\ 0 & 3 & 2 \end{vmatrix} = 132\), find the value of x.

A5
B8
C6
D3
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Question 33
jamb 2019

If 2x\(^2\) + x - 3 divides x - 2, find the remainder.

A7
B3
C5
D6
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Question 34
jamb 2019

Find the polynomial if given q(x) = x\(^2\) - x - 5, d(x) = 3x - 1 and r(x) = 7.

A3x\(^3\) - 4x\(^2\) - 14x + 12
B3x\(^2\) + 3x - 7
C3x\(^3\) + 4x\(^2\) + 14x - 12
D3x\(^2\) - 3x + 4
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Question 35
jamb 2019

Determine the values for which \(x^2 - 7x + 10 \leq 0\)

A2 \(\leq\) x \(\geq\) 5
B-2 \(\leq\) x \(\leq\) 3
C-2 \(\leq\) x \(\geq\) 3
D2 \(\leq\) x \(\leq\) 5
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Question 36
jamb 2019

Find the value of x for \(\frac{2 + 2x}{3} - 2 \geq \frac{4x - 6}{5}\)

Ax \(\geq\) -5
Bx \(\geq\) -1
Cx \(\leq\) -1
Dx \(\leq\) 3
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Question 37
jamb 2019

Evaluate \(\frac{2\log_{3} 9 \times \log_{3} 81^{-2}}{\log_{5} 625}\)

A4
B-32
C-8
D16
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Question 38
jamb 2019

Find the value of k in the equation: \(\sqrt{28} + \sqrt{112} - \sqrt{k} = \sqrt{175}\)

A\(\sqrt{28}\)
B7
C28
D\(\sqrt{7}\)
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Question 39
jamb 2019

In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?

A144 ways
B15 ways
C185 ways
D12 ways
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Question 40
jamb 2019

If the universal set μ = {x : 1 ≤ x ≤ 20} and
A = {y : multiple of 3}
B = |z : odd numbers}
Find A ∩ B

A{1, 3, 6}
B{3, 5, 9, 12}
C{3, 9, 15}
D{2, 3, 9}
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Question 41
jamb 2019

If the 3rd and 7th terms of a G.P are 9 and 1/9 respectively. Find the common ratio.

A\(\frac{1}{3}\)
B\(\frac{1}{9}\)
C\(\frac{2}{3}\)
D\(\frac{2}{9}\)
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Question 42
jamb 2019

Find the probability that a number selected at random from 21 to 34 is a multiple of 3

A\(\frac{3}{11}\)
B\(\frac{2}{9}\)
C\(\frac{5}{14}\)
D\(\frac{5}{13}\)
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Question 43
jamb 2019

Integrate \(\int (4x^{-3} - 7x^2 + 5x - 6) \mathrm d x\).

A\(-2x^{-2} - \frac{7}{3}x^3 + \frac{5}{2} x^2 - 6x\)
B\(2x^2 + \frac{7}{3} x^3 - 5x + 6\)
C\(12x^2 + 14x - 5\)
D\(-12x^{-4} - 14x + 5\)
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Question 44
jamb 2019

This table below gives the scores of a group of students in a Further Mathematics Test.

Score 1 2 3 4 5 6 7
Frequency 4 6 8 4 10 6 2

Calculate the mean deviation for the distribution

A4.32
B2.81
C1.51
D3.90
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Question 45
jamb 2019

This table below gives the scores of a group of students in a Further Mathematics Test.

Score 1 2 3 4 5 6 7
Frequency 4 6 8 4 10 6 2

Find the mode of the distribution.

A7
B10
C5
D4
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Question 46
jamb 2019

If M varies directly as N and inversely as the root of P. Given that M = 3, N = 5 and P = 25. Find the value of P when M = 2 and N = 6.

A36
B63
C47
D81
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Question 47
jamb 2019

A binary operation Δ is defined by a Δ b = a + 3b + 2.
Find (3 Δ 2) Δ 5

A35
B59
C28
D87
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Question 48
jamb 2019

A factory worker earns ₦50,000 per month out of which he spends 15% on his children's education, ₦13,600 on Food, 3% on electricity and uses the rest for his personal purpose. How much does he have left?

AN21,850
BN18,780
CN27,400
DN32,500
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Question 49
jamb 2019

Find the equation of the locus of a point A(x, y) which is equidistant from B(0, 2) and C(2, 1)

A4x + 2y = 3
B4x - 3y = 1
C4x - 2y = 1
D4x + 2y = -1
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Question 50
jamb 2019

A bricklayer charges ₦1,500 per day for himself and ₦500 per day for his assistant. If a two bedroom flat was built for ₦95,000 and the bricklayer worked 10 days more than his assistant, how much did the assistant receive?

AN20,000
BN28,000
CN31,200
DN41,000
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