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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 271

jamb 2021

find the value of p if the line which passes through (-1, -p) and (-2,2) is parallel to the line 2y+8x-17=0?

A$\frac{-2}{7}$

B$\frac{7}{6}$

C$\frac{-6}{7}$

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Question 272

jamb 2021

A trapezium has two parallel sides of lengths 5cm and 9cm. If the area is 91cm$^2$, find the distance between the parallel sides

A13 cm

B4 cm

C6 cm

D7 cm

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Question 273

jamb 2021

determine the maximum value of y=3x$^2$ + 5x - 3

DNo correct option

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Question 274

jamb 2021

What is the rate of change of the volume V of a hemisphere with respect to its radius r when r = 2?

A8π

B16π

C2π

D4π

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Question 275

jamb 2021

In how many ways can 2 students be selected from a group of 5 students in a debating competition?

A25 ways

B10 ways

C15 ways

D20 ways

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Question 276

jamb 2021

Solve the following equation: $\frac{2}{(2r - 1)}$ - $\frac{5}{3}$ = $\frac{1}{(r + 2)}$

A( -1,$\frac{5}{2}$ )

B( 1, - $\frac{5}{2}$ )

C( $\frac{5}{2}$, 1 )

D(2,1)

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Question 277

waec 2020

Find the least value of x which satisfies the equation 4x = 7(mod 9)

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Question 278

waec 2020

In the diagram, O is the centre of the circle. If < NLM = 74$^o$, < LMN = 39$^o$ and < LOM = x, find the value of x.

A134$^o$

B126$^o$

C113$^o$

D106$^o$

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Question 279

waec 2020

If (x + 2) is a factor of x$^2$ +px - 10, find the value of P.

B-3

D-7

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Question 280

waec 2020

The graph of the equations y = 2x + 5 and y = 2x$^2$ + x - 1 are shown. Use the information above to answer this question.

If x = -2.5, what is the value of u on the curve?

Ay = 8.0

By = 8.5

Cy = 9.0

Dy = 9.5

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Question 281

waec 2020

The graph of the equations y = 2x + 5 and y = 2x$^2$ + x - 1 are shown. Use the information above to answer this question.

Find the point of intersection of the two graphs.

A(2.0, 9.0) and (-1.5, 2.0)

B(2.0, 8.5) and (-1.5, 2.0)

C(2.0, 8.0) and (-1.5, 2.5)

D(2.0, 7.5) and (-1.5, 2.5)

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Question 282

waec 2020

The interquartile range of distribution is 7. If the 25th percentile is 16, find the upper quartile.

A35

B30

C23

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Question 283

waec 2020

A woman received a discount of 20% on a piece of cloth she purchased from a shop. If she paid $525.00, what was the original price?

A$675.25

B$660.25

C$656.25

D$616.25

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Question 284

waec 2020

Which of the following is not a sufficient condition for two triangles to be congruent?

AAAS

BSSS

CSAS

DSSA

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Question 285

waec 2020

In the diagram, O is the center of the circle. $\overline{PQ}$ and $\overline{RS}$ are tangents to the circle. Find the value of (M + N).

A120$^o$

B90$^o$

C75$^o$

D60$^o$

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Question 286

waec 2020

x	6.20	6.85	7.50
y	3.90	5.20	6.50

The points on a linear graph are as shown in the table. Find the gradient (slope) of the line.

A2$\frac{1}{2}$

D$\frac{1}{2}$

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Question 287

waec 2020

In the diagram, PQ is a straight line. If m = $\frac{1}{2}$ (x + y + z), find value of m.

A45$^o$

B60$^o$

C90$^o$

D100$^o$

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Question 288

waec 2020

A box contains 12 identical balls of which 5 are red, 4 blue, and the rest are green. If two balls are selected at random one after the other with replacement, what is the probability that both are red?

A$\frac{25}{144}$

B$\frac{5}{33}$

C$\frac{5}{6}$

D$\frac{103}{132}$

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Question 289

waec 2020

A box contains 12 identical balls of which 5 are red, 4 blue, and the rest are green. If a ball is selected at random from the box, what is the probability that it is green?

A$\frac{3}{4}$

B$\frac{1}{2}$

C$\frac{1}{3}$

D$\frac{1}{4}$

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Question 290

waec 2020

The diameter of a sphere is 12 cm. Calculate, correct of the nearest cm$^3$, the volume of the sphere, [Take $\pi = \frac{22}{7}$]

A903 cm$^3$

B904 cm$^3$

C905 cm$^3$

D906 cm$^3$

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