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Mathematics Past Questions

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

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89 questions

Question 1 of 20 89 total questions

Question 21

waec 2021

Mensah is 5 years old and joyce is thrice as old as mensah. In how many years will joyce be twice as old as Mensah?

A3 years

B10 years

C5 years

D15 years

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Question 22

waec 2021

What number should be subtracted from the sum of 2 \(\frac{1}{6}\) and 2\(\frac{7}{12}\) to give 3\(\frac{1}{4}\)?

A\(\frac{1}{3}\)

B1\(\frac{1}{2}\)

C1\(\frac{1}{6}\)

D\(\frac{1}{2}\)

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Question 23

waec 2021

Factorize 6pq-3rs-3ps+6qr

A3(r -p)(2q + s)

B3(p + r)( 2q - 2q - s)

C3(2q - s)(p + r)

D3(r - p)(s - 2q)

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Question 24

waec 2021

if p = {-3

B-3, -2, -1, 0 and 1

C-2, -1 and 0

D-1, 0 and 1

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Question 25

waec 2021

Find the 5th term of the sequence 2,5,10,17....?

A22

B24

C36

D26

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Question 26

waec 2021

If log\(_{10}\) 2 = m and log\(_{10}\) 3 = n, find log\(_{10}\) 24 in terms of m and n.

A3m + n

Bm + 3n

C4mn

D3mn

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Question 27

waec 2021

Solve: 2\(^{\sqrt{2x + 1}}\) = 32

A13

B24

C12

D11

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Question 28

waec 2021

Simplify: (11\(_{two}\))\(^2\)

A1001\(_2\)

B1101\(_2\)

C101\(_2\)

D10001\(_2\)

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Question 29

waec 2021

correct 0.007985 to three significant figures.

A0.0109

B0.0800

C0.00799

D0.008

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Question 30

jamb 2021

If (x + 2) and (x - 1) are factors of the expression \(Lx + 2kx^{2} + 24\), find the values of L and k.

Al = -12, k = -6

Bl = -2 , k = 1

Cl = -2 , k = -1

Dl = 0, k = 1

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Question 31

jamb 2021

A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group?

A25

B19

C18

D17

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Question 32

jamb 2021

X is due east point of y on a coast. Z is another point on the coast but 6.0km due south of Y. If the distance ZX is 12km, calculate the bearing of Z from X

A240°

B150°

C60°

D270°

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Question 33

jamb 2021

List all integers satisfying the inequality in -2 < 2x-6 < 4

A2,3,4 and 5

B2,3

C2,5

D3,4

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Question 34

jamb 2021

Find x if log\(_9\)x = 1.5

A27

B15

C3.5

D32

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Question 35

jamb 2021

Factorize completely 81a\(^4\) - 16b\(^4\)

A(3a + 2b)(2a - 3b)(9a² + 4b²)

B(3a - 2b)(2a - 3b)(4a² - 9b²)

C(3a - 2b)(3a + 2b)(9a² + 4b²)

D(6a - 2b)(8a - 3b)(4a³ - 9b²)

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Question 36

jamb 2021

If the binary operation \(\ast\) is defined by m \(\ast\) n = mn + m + n for any real number m and n, find the identity of the elements under this operation

Ae = 1

Be = -1

Ce = -2

De = 0

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Question 37

jamb 2021

What is the n-th term of the sequence 2, 6, 12, 20...?

A4n - 2

B2(3^{n - 1})

Cn² + n

Dn² + 3n + 2

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Question 38

jamb 2021

The angles of a quadrilateral are 5x-30, 4x+60, 60-x and 3x+61.find the smallest of these angles

A5x - 30

B4x + 60

C60 - x

D3x + 61

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Question 39

jamb 2021

factorize m\(^3\) - m\(^2\) + 2m - 2

A(m² + 1)(m - 2)

B(m - 1)(m + 1)(m + 2)

C(m - 2)(m + 1)(m - 1)

D(m² + 2)(m - 1)

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Question 40

jamb 2021

If g(x) = x\(^2\) + 3x find g(x + 1) - g(x)

A(x + 2)

B2(x + 2)

C(2x + 1)

D(x² + 4)

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