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Mathematics Past Questions

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107 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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107 questions

Question 1 of 20 107 total questions

Question 21

waec 2015

Find the 7th term of the sequence: 2, 5, 10, 17, 26,...

A37

B48

C50

D63

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Question 22

waec 2015

If $\frac{27^x \times 3^{1 - x}}{9^{2x}} = 1$, find the value of x.

B$\frac{1}{2}$

C-$\frac{1}{2}$

D-1

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Question 23

waec 2015

A trader bought an engine for $15,000.00 outside Nigeria. If the exchange rate is $0.075 to N1.00, how much did the engine cost in Naira?

AN250,000.00

BN200,000.00

CN150,000.00

DN100,000.00

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Question 24

waec 2015

The sum 11011$_2$, 11111$_2$ and 10000$_2$ is 10m10n0$_2$. Find the value of m and n.

Am = 0, n = 0

Bm = 1, n = 0

Cm = 0, n = 1

Dm = 1, n = 1

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Question 25

waec 2015

If {X: 2 d- x d- 19; X integer} and 7 + x = 4 (mod 9), find the highest value of x

C15

D18

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Question 26

jamb 2015

Given that tan x = $\frac{2}{3}$, where 0^o d" x d" 90^o, Find the value of 2sinx.

A$\frac{2\sqrt{13}}{13}$

B$\frac{3\sqrt{13}}{13}$

C$\frac{4\sqrt{13}}{13}$

D$\frac{6\sqrt{13}}{13}$

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Question 27

jamb 2015

Factorize $ a^2 − b^2 − 4a + 4 $

A(a + b)(a − b)

B(a − 2 + b)(a - 2- b)

C(a + 1)(a − 2 + b)

D(a + b) 2

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Question 28

jamb 2015

Rationalize 5 ÷ (2 − √3)

A3(2 + √5)

B2(3 + √5)

C5(2 + √3)

D3 √2 + 1

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Question 29

jamb 2015

A public car dealer marked up the cost of a car at 30% in an attempt to make 20% gross profit. Due to the value of dollar, he now placed 20% discount on the car. What profit or loss will he make?

A3%

B2%

C4%

D1%

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Question 30

jamb 2015

Simplify 2.04 × 3.7 (Leave your answer in 2 decimal place)

A7.51

B7.71

C5.5

D7.55

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Question 31

jamb 2015

If duty is levied at 25%, find the duty to be added to a bill of N80.

AN100

BN20

CN80

DN150

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Question 32

jamb 2015

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

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Question 33

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 34

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 35

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 36

jamb 2015

Simplify $\sqrt{30}$ × $\sqrt{40}$

A10 √3

B5 √3

C20 √3

D15 √3

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Question 37

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 38

jamb 2015

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

A16

C10

D12

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Question 39

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 40

jamb 2015

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

A157cm³

B155cm³

C175cm³

D145cm³

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