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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

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Question 581

jamb 2015

If log₅20 = x, find x

A1.761

B1.354

C1.861

D2.549

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Question 582

jamb 2015

Make x the subject of the equation
s = 2 + \(\frac{t}{5} \)(x + ⅗y)

Ax = 5[(s − 2) ÷ t] - 3/5y

Bx = 25[(s − 2) ÷ t] − 3ty

Cx = [1 ÷ (s − 2)3ty]

Dx = [5(s − 2) 2 ÷ 3ty] × t

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Question 583

jamb 2015

The amount A to which a principal P amounts at r% compound interest for n years is given by the formula A = P(1 + (r ÷ 100)\(^n\). Find A, if P = 126, r = 4 and n = 2.

AN132.50K

BN136.30K

CN125.40K

DN257.42K

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Question 584

jamb 2015

Find the equation of a line which is form origin and passes through the point (−3, −4)

Ay = \( \frac{3x}{4} \)

By = \( \frac{4x}{3} \)

Cy = \( \frac{2x}{3} \)

Dy = \( \frac{x}{2} \)

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Question 585

jamb 2015

The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms

Anth = 3

Bnth = 4

Cnth = 5

Dnth = 6

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Question 586

jamb 2015

Solve the equation \( 3x^2 − 4x − 5 = 0 \)

Ax = 1.75 or − 0.15

Bx = 2.12 or − 0.79

Cx = 1.5 or − 0.34

Dx = 2.35 or −1.23

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Question 587

jamb 2015

A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much income tax expenses does he pay each year?

A15

B50

C70

D25

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Question 588

jamb 2015

If x + y = 90 simplify \((sinx + siny)^2\)−2sinxsiny

D-1

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Question 589

jamb 2015

Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

A17.8cm²

B15.8cm²

C75.4cm²

D54.7cm²

E\(377.0cm^{2}\)

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Question 590

jamb 2015

Simplify log₁₀1.5 + 3 log₁₀2 − log₁₀0.3

Alog₁₀4

Blog₁₀40

Clog₁₀-40

Dlog₁₀4^-

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Question 591

jamb 2015

Find the x and z intercepts of the graph of 3x - z \(\leq\) 9

A(3, -9)

B(-3, 9)

C(-3, -9)

D(-3, 0)

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Question 592

jamb 2015

X and Y are two sets such that n(X) = 15, n(Y) = 12 and n{X ∩ Y} = 7. Find ∩{X ∪ Y}

A21

B225

C15

D20

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Question 593

jamb 2015

If three staff of Myschool Limited agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is N120,000.00K, How much does the second staff received?

AN36,000

BN44,000

CN40,000

DN15,000

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Question 594

jamb 2015

Factorize x² + 9x + 20

A(x − 5) ²

B(x + 5)(x + 4)

C(x – 5)(x + 3)

D(x + 3) ²

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Question 595

jamb 2015

Simplify 1¼ ÷ (2 ÷ ¼ of 28)

A1 \( \frac{3}{8}\)

B2 \( \frac{3}{4}\)

C4 \( \frac{3}{8}\)

D3 \( \frac{1}{5}\)

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Question 596

jamb 2015

In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate

A3%

B1.0%

C2.5%

D5.40%

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Question 597

waec 2014

In the diagram, O is the centre of the circle of the circle, PR is a tangent to the circle at Q < SOQ = 86^o. Calculate the value of < SQR.

A43^o

B47^o

C54^o

D86^o

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Question 598

waec 2014

Determine the value of m in the diagram

A80^o

B90^o

C110^o

D150^o

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Question 599

waec 2014

In the figures, PQ is a tangent to the circle at R and UT is parallel to PQ. if < TRQ = xo, find < URT in terms of x

A2x^o

B(90 - x)^o

C(90 + x)^o

D(180 - 2x)^o

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Question 600

waec 2014

The graph given is for the relation y = 2x\(^2\) + x - 1. Find the minimum value of y

A0.00

B-0.65

C-1.25

D-2.10

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