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Mathematics Past Questions

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1,853 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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1,853 questions

Question 1 of 20 1,853 total questions

Question 311

waec 2013

If \(\frac{1}{2}\)x + 2y = 3 and \(\frac{3}{2}\)x - 2y = 1, find (x + y)

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Question 312

waec 2013

If x = 64 and y = 27, evaluate: \(\frac{x^{\frac{1}{2}} - y^{\frac{1}{3}}}{y - x^{\frac{2}{3}}}\)

A2\(\frac{1}{5}\)

C\(\frac{5}{11}\)

D\(\frac{11}{43}\)

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Question 313

waec 2013

Solve the inequality: \(\frac{2x - 5}{2} < (2 - x)\)

Ax > 0

Bx < \(\frac{1}{4}\)

Cx > 2\(\frac{1}{2}\)

Dx < 2\(\frac{1}{4}\)

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Question 314

waec 2013

Simplify: \(\frac{x^2 - y^2}{(x + y)^2} \div \frac{(x - y)^2}{(3x + 3y)}\)

A\(\frac{x - y}{3}\)

Bx + y

C\(\frac{3}{x - y}\)

Dx - y

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Question 315

waec 2013

Four oranges sell for Nx and three mangoes sell for Ny. Olu bought 24 oranges and 12 mangoes. How much did he pay in terms of x and y?

AN94x + 6y)

BN(6x + 4y)

CN(24x + 12y)

DN(12x + 24y)

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Question 316

waec 2013

A sales boy gave a change of N68 instead of N72. Calculate his percentage error

A4%

B5\(\frac{5}{9}\)%

C5\(\frac{15}{17}\)%

D7%

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Question 317

waec 2013

If \(\sqrt{50} - K\sqrt{8} = \frac{2}{\sqrt{2}}\), find K

A-2

B-1

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Question 318

waec 2013

If Un = n(n² + 1), evaluate U5 - U4

A18

B56

C62

D80

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Question 319

waec 2013

Simplify \(\frac{1\frac{7}{8} \times 2\frac{2}{5}}{6\frac{3}{4} \div \frac{3}{4}}\)

B4\(\frac{1}{2}\)

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

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Question 320

waec 2013

In what number base is the addition 465 + 24 + 225 = 1050?

Aten

Bnine

Ceight

Dseven

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Question 321

waec 2013

If 9^{(2 - x)} = 3, find x

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

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

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Question 322

waec 2013

Multiply 2.7 x 10^-4 by 6.3 x 10⁶ and leave your answers in standard form

A1.7 x 10³

B1.70 x 10³

C1.701 x 10³

D17.01 x 10³

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Question 323

waec 2012

The diagram is a polygon. Find the largest of its interior angles

A300^o

B100^o

C120^o

D150^o

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Question 324

waec 2012

The graph is that of y = 2x² - 5x - 3. For what value of x will y be negative? For what value of x will y be negative?

A-\(\frac{1}{2} \leq x\) < 3

B-\(\frac{1}{2} < x \leq 3\)

C-\(\frac{1}{2} < x < 3\)

D-\(\frac{1}{2} \leq x \leq 3\)

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Question 325

waec 2012

In the diagram, |SR| = |QR|. < SRP = 65^o and < RPQ = 48^o, find < PRQ

A65^o

B45^o

C25^o

D19^o

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Question 326

waec 2012

The diagram is a circle of radius |QR| = 4cm. \(\bar{R}\) is a tangent to the circle at R. If TPO = 120^o, find |PQ|.

A2.32cm

B1.84cm

C0.62cm

D0.26cm

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Question 327

waec 2012

The diagram is a circle with centre P. PRST are points on the circle. Find the value of < PRS

A144^o

B72^o

C40^o

D36^o

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Question 328

waec 2012

In the diagram, MN//PO, < PMN = 112º, < PNO = 129º, < NOP = 37º and < MPN = yo. Find the value of y

A51^o

B54^o

C56^o

D68^o

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Question 329

waec 2012

The graph is that of y = 2x² - 5x - 3. For what value of x will y be negative? What is the gradient of y = 2x² - 5x - 3 at the point x = 4?

A11.1

B10.5

C10.3

D9.9

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Question 330

waec 2012

The bar chart shows the frequency distribution of marks scored by students in a class test. What is the median of the distribution?

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