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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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2,359 questions

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Question 181

jamb 2019

A man bought a car newly for ₦1,250,000. He had a crash with the car and later sold it at the rate of ₦1,085,000. What is the percentage gain or loss of the man?

A43.7% loss

B13.2% gain

C13.2% loss

D43.7% gain

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Question 182

jamb 2019

Each of the interior angles of a regular polygon is 140°. Calculate the sum of all the interior angles of the polygon.

A1080°

B1260°

C2160°

D1800°

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Question 183

jamb 2019

In the diagram above, O is the centre of the circle ABC, < ABO = 26° and < BOC = 130°. Calculate < AOC.

A26°

B13°

C80°

D102°

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Question 184

jamb 2019

If \(P = (\frac{Q(R - T)}{15})^{\frac{1}{3}}\), make T the subject of the formula.

A\(T = \frac{15R - Q}{P^3}\)

B\(T = R - \frac{15P^3}{Q}\)

C\(T = \frac{R - 15P^3}{Q}\)

D\(T = \frac{R + P^3}{15Q}\)

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Question 185

jamb 2019

Points X and Y are 20km North and 9km East of point O, respectively. What is the bearing of Y from X? Correct to the nearest degree.

A24°

B56°

C127°

D156°

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Question 186

jamb 2019

Find the value of x and y in the simultaneous equation: 3x + y = 21; xy = 30

Ax = 3 or 7, y = 12 or 8

Bx = 6 or 1, y = 11 or 5

Cx = 2 or 5, y = 15 or 6

Dx = 1 or 5, y = 10 or 7

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Question 187

jamb 2019

Simplify \(\frac{0.0839 \times 6.381}{5.44}\) to 2 significant figures.

A0.2809

B2.51

C3.5

D0.098

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Question 188

jamb 2019

If 2\(^{x + y}\) = 16 and 4\(^{x - y} = \frac{1}{32}\), find the values of x and y.

Ax = \(\frac{3}{4}\), y = \(\frac{11}{4}\)

Bx = \(\frac{3}{4}\), y = \(\frac{13}{4}\)

Cx = \(\frac{2}{3}\), y = \(\frac{4}{5}\)

Dx = \(\frac{2}{3}\), y = \(\frac{13}{4}\)

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Question 189

jamb 2019

Evaluate \((\frac{6}{0.32} \div \frac{2}{0.084})^{-1}\) correct to 1 decimal place.

A1.3

B2.5

C4.6

D3.2

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Question 190

jamb 2019

The weight of a day-old chick was measured to be 0.21g. If the actual weight of the chick is 0.18g, what was the percentage error in the measurement?

A15.5%

B18.2%

C14.8%

D16.7%

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Question 191

jamb 2019

The angles of a polygon are given by 2x, 5x, x and 4x respectively. The value of x is

A31°

B30°

C26°

D48°

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Question 192

jamb 2019

If S = (4t + 3)(t - 2), find ds/dt when t = 5 secs.

A50 units per sec

B35 units per sec

C22 units per sec

D13 units per sec

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Question 193

jamb 2019

Find the value of \(\frac{(0.5436)^3}{0.017 \times 0.219}\) to 3 significant figures.

A46.2

B43.1

C534

D431

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Question 194

jamb 2019

Simplify 81\(^{\frac{-3}{4}}\) x 25\(^{\frac{1}{2}}\) x 243\(^{\frac{2}{5}}\)

A\(\frac{2}{5}\)

B\(\frac{3}{5}\)

C\(\frac{5}{2}\)

D\(\frac{5}{3}\)

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Question 195

jamb 2019

The simple interest on ₦8550 for 3 years at x% per annum is ₦4890. Calculate the value of x to the nearest whole number.

A19%

B20%

C25%

D16.3%

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Question 196

jamb 2019

Tade bought 200 mangoes at 4 for ₦2.50. 30 out of the mangoes got spoilt and the remaining were sold at 2 for ₦2.40. Find the percentage profit or loss.

A43.6% loss

B35% profit

C63.2% profit

D28% loss

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Question 197

jamb 2019

If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.

A12

D16

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Question 198

jamb 2019

Integrate \(\int_{-1} ^{2} (2x^2 + x) \mathrm {d} x\)

A\(4\frac{1}{2}\)

B\(3\frac{1}{2}\)

C\(7\frac{1}{2}\)

D\(5\frac{1}{4}\)

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Question 199

jamb 2019

The nth term of a sequence is given by 2\(^{2n - 1}\). Find the sum of the first four terms.

A74

B32

C42

D170

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Question 200

jamb 2019

Solve the inequality: -7 \(\leq\) 9 - 8x < 16 - x

A-1 \(\leq\) x \(\leq\) 2

B-1 \(\leq\) x < 2

C-1 < x < 2

D-1 < x \(\leq\) 2

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