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Mathematics Past Questions

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4,407 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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4,407 questions

Question 1 of 20 4,407 total questions

Question 561

jamb 2015

How many sides has a regular polygon whose interior angles are 120°each

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Question 562

jamb 2015

Solve the equation
\( 5^{(x − 2)} = (1 ÷ 125)^{(x +3)}\)

A3/2

B− 7/4

C4/7

D7/4

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Question 563

jamb 2015

The sum of two numbers is 5; their product is -14. Find the numbers.

Ax = 5 or 1

Bx = 7 or 1

Cx = 7 or 0

Dx = 7 or − 2

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Question 564

jamb 2015

If √ (2x + 2) − √x =1 ,find x.

Ax = 1 twice

Bx = 0 or 1

Cx = 3 or 1

Dx = 2 twice

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Question 565

jamb 2015

Simplify \(\sqrt{30}\) × \(\sqrt{40}\)

A10 √3

B5 √3

C20 √3

D15 √3

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Question 566

jamb 2015

Calculate the value of x and y if (27^x ÷ 81^x+2y = 9 ,x + 4y = 0

Ax = 1, y = 1/2

Bx = 2, y = – 1/2

Cx − 0, y = 1

Dx = 2, y = –1

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Question 567

jamb 2015

Given that Z = {1,2,4,5} what is the power of set Z?

A16

C10

D12

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Question 568

jamb 2015

The probability of an outcome A is 1/6 . The probability of the B outcome is 1/4 . If the probability of A or B or both is 1/12 . What is the probability of both outcomes A and B?

A1/2

B1/3

C2/5

D3/4

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Question 569

jamb 2015

The volume of a cone (s) of height 6cm and base radius 5cm is

A157cm³

B155cm³

C175cm³

D145cm³

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Question 570

jamb 2015

The area of an ellipse is 132cm\(^2\).The length of its major axis is 14cm.Find the length of its minor axis

A10.5cm

B5cm

C10cm

D12cm

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Question 571

jamb 2015

The area of a circle of radius 4cm is equal to (Take π = 3.142 )

A10.3cm²

B15.7cm²

C50.3cm²

D17.4cm²

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Question 572

jamb 2015

Simplify \( \frac{1}{(x + 1)} + \frac{1}{(x − 1)} \)

A2x/(x + 1)(x−3)

B2x/(x + 1)(x−1)

C2x/(x + 1)2

D2x(x+1)2

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Question 573

jamb 2015

Find the area of the curved surface of a cone whose base radius is 3cm and whose height is 4cm (π = 3.14)

A17.1cm²

B27.2cm²

C47.1cm²

D37.3cm²

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Question 574

jamb 2015

Integral ∫\( (5x^3 + 7x^2 − 2x + 5)\)dx

A\( \frac{5x^4}{4} + \frac{7x^3}{3} + 2x + C \)

B\( \frac{5x^4}{4} + \frac{7x^3}{3} - x^2 + 5x + C \)

C\( \frac{5x^3}{3} + \frac{7x^2}{x} - x + C \)

D\( \frac{2x^2}{3} + \frac{x}{5} - C \)

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Question 575

jamb 2015

Evaluate log5(\( y^2x^5 ÷ 125b½) \)

A2 log₅y + 5log₅ y² − 3

Blog₅ y² + 5log₅ x + 3

C25log_y 5 + 3

D2log₅y + 5log₅x − ½ log₅b −3

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Question 576

jamb 2015

10011₂ + *****₂ + 11100₂ + 101₂ = 1001111₂

A1111₂

B11011₂

C10111₂

D11001₂

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Question 577

jamb 2015

Evaluate log₇17

A1.35

B1.353

C1.455

D0.455

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Question 578

jamb 2015

If an investor invest N450,000 in a certain organization in order to yield X as a return of N25,000. Find the return on an investment of N700,000 by Y in the same organization.

AN14,950.50K

BN25,150.30K

CN15,000.00K

DN38,888.90K

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Question 579

jamb 2015

Given that S and T are sets of real numbers such that S = {x : 0 \(\leq\) x \(\leq\) 5} and T = {x : − 2 < x < 3} Find S \(\cup\) T

A−3 < x < \(\leq\)3

B−2< x < \(\leq\)5

C2< x < \(\geq\) −5

D−1< x \(\geq\) \(\leq\)2

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Question 580

jamb 2015

Determine the third term of a geometrical progression whose first and second term are 2 and 54 respectively

A1458

B1485

C1345

D1258

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