Mathematics Past Questions

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

2,359 questions
Question 1 of 20 2,359 total questions
Question 621
jamb 2002

If -2 is the solution of the equation 2x + 1 - 3c = 2c + 3x - 7, find the value of c.

A4
B3
C2
D1
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Question 622
jamb 2002

The inverse function f(x) = 3x + 4 is

A(x-4)/3
B(x-5)/5
C(x+3)/4
D(x+4)/3
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Question 623
jamb 2002

Make r subject of the formula given that \(\frac{x}{r+a}=\frac{a}{r}\)

A\(\frac{a^{2}}{(x-a)}\)
B\(\frac{a^{2}}{(x+a)}\)
C\(\frac{a}{x-a}\)
D\(\frac{a}{x+a}\)
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Question 624
jamb 2002

If the 9th term of an A.P is five times the 5th term, find the relationship between a and d.

A2a + 2 = 0
B3a + 5d = 0
Ca + 3d = 0
Da + 2d = 0
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Question 625
jamb 2002

Find the maximum value of y in the equation y = 1 - 2x - 3x\(^2\)

A5/4
B5/3
C3/4
D4/3
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Question 626
jamb 2002

Find the range of values of x for which \(\frac{(x+2)}{4}\) -\(\frac{2x-3}{3}\) < 4

Ax > -6
Bx > -3
Cx < 8
Dx < 4
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Question 627
jamb 2002

The time taken to do a piece of work is inversely proportional to the number of men employed. if it takes 45 men to do a piece of work in 5 days, how long will it take 25 men?

A15 days
B12 days
C5 days
D9 days
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Question 628
jamb 2002

Solve for x in the equation x\(^3\) - 5x\(^2\) - x + 5 = 0

A1, - 1, or 5
B1, 1, or -5
C-1, 1, or -5
D1, 1, or 5
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Question 629
jamb 2002

If \(y = x^2 - \frac{1}{x}\). find dy/dx

A2x - (1/x2)
B2x + x2
C2x - x2
D2x + (1/x2)
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Question 630
jamb 2002

A circle with radius 5cm has its radius increasing at the rate of 0.2m/s. What will be the corresponding increase in the area?

A2π
B5π
Cπ
D4π
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Question 631
jamb 2002

Evaluate \(\int \sin 3x \mathrm d x\)

A(2/3) cos 3x + c
B(1/3) cos 3x + c
C(-1/3) cos 3x + c
D(-2/3) cos 3x + c
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Question 632
jamb 2002

The slope of the tangent to the curve y = 3x\(^2\) - 2x + 5 at the point (1, 6) is

A4
B1
C6
D5
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Question 633
jamb 2002

Find the derivative of \(y = \sin^{2} (5x)\) with respect to x.

A10 sin 5x cos 5x
B5 sin5x cos 5x
C2 sin 5x cos 5x
D15 sin 5x cos 5x
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Question 634
jamb 2002
If dy/dx = 2x - 3 and y = 3 when x = 0, find y in terms of x.
A2x2 - 3x
Bx2 - 3x
Cx2 - 3x - 3
Dx2 - 3x + 3
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Question 635
jamb 2002
A trader bought goats for N4000 each. He sold them for N180,000 at a loss of 25%. How many goats did he buy?
A60
B50
C45
D36
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Question 636
jamb 2002

Evaluate: \(\frac{0.21 \times 0.072 \times 0.00054}{0.006 \times 1.68 \times 0.063}\)

A0.01286
B0.01285
C0.1286
D0.1285
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Question 637
jamb 2002

Simplify \((\sqrt{0.7} + \sqrt{70})^{2}\)

 

A84.7
B70.7
C217.7
D168.7
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Question 638
jamb 2002

Simplify 52.4 - 5.7 - 3.45 - 1.75

A41.4
B41.5
C42.1
D42.2
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Question 639
jamb 2002
In a school, 220 students offer Biology or Mathematics or both. 125 offer Biology and 110 mathematics. How many offer Biology but not Mathematics?
A95
B80
C125
D110
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Question 640
jamb 2002

Without using tables, evaluate \((343)^{\frac{1}{3}} \times (0.14)^{-1} \times (25)^{-\frac{1}{2}}\)

A10
B12
C8
D7
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