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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

Question 1 of 20 2,359 total questions

Question 1121

jamb 1980

A set of data contains a total of 130 items which are divided into six groups for display on a pie chart. If one group contains 26 items, then the sector representing this group on the pie chart contains an angle x^o at the centre of the circle where x is

A36^o

B60^o

C70^o

D72^o

E75^o

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Question 1122

jamb 1980

In a school, there are 35 students in class 2A and 40 in class 2B. The mean score for class 2 in an English Literature examination is 60.0 and that for 2B in the same paper is 52.5. Find, to one place of decimal, the mean for the combined classes

A2.5

B56.0

C56.2

D56.3

E6.5

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Question 1123

jamb 1980

Three numbers, x, y and z are connected by the relationships y = \(\frac{4x}{9}\) + 1. If x = 99, Find z = \(\frac{4y}{9}\) + 1

A6\(\frac{1}{3}\)

B20

C21

D176\(\frac{4}{9}\)

ENone of the above

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Question 1124

jamb 1980

Which of the formula below represents the general terms of the following set of numbers(-1, \(\frac{2}{3}\), -\(\frac{1}{2}\), \(\frac{2}{5}\)......) for n = 1, 2, 3, 4.......?

A\(\frac{2}{n + 1}\)

B(-1)^{n + 1} \(\frac{2}{n + 1}\)

C(-1)ⁿ \(\frac{2}{n + 1}\)

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

E(-1)ⁿ\(\frac{n}{2n - 1}\)

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Question 1125

jamb 1980

What factor is common to all the expressions x² - x, 2x² + x - 1 and x² - 1?

Bx + 1

Cx - 1

DNo common factor

E(2x - 1)

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Question 1126

jamb 1980

Make c the subject of formula v = 1 - \(\frac{a}{5}\)(b + \(\frac{3c}{7}\))

A[\(\frac{7}{3}\) + \(\frac{5}{a}\)(v - 1)] + b

B[\(\frac{7b}{3}\) + \(\frac{5}{a}\)(v - 1)]

C\(\frac{-7}{3}\)[b + \(\frac{5}{a}\)(v - 1)]

D\(\frac{7}{3}\)[b + \(\frac{5v - 1}{a}\)]

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Question 1127

jamb 1980

Simplify \(\frac{log_{10}8}{log_{10}4}\)

Alog10²

Blog10⁴

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

ENone of the above

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Question 1128

jamb 1980

A man and his wife went to buy an article costing N400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether?

AN216

BN200

CN184

DN144

EN100

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Question 1129

jamb 1980

P and Q are fixed points, and X is a variable point which moves so that angle PXQ = 45º. What is the locus of x?

AA pair of straight lines parallel to PQ

BThe perpendicular bisector of PQ

CAn arc of a circle passing through P and Q

DA circle with diameter PQ

EThe bisector of angle PXQ

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Question 1130

jamb 1980

The ratio of the areas of similar triangles is necessarily equal to

Athe ratio of the corresponding sides

Bthe ratio of the squares of corresponding sides

Cthe ratio of the corresponding heights of the triangles

Dhalf the ratio of the corresponding heights of the triangles

Ethe ratio of the corresponding bases to the heights of the triangles

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Question 1131

jamb 1980

A solid cylinder of radius 3cm has a total surface area of 36\(\pi\)cm2. Find its height

A2cm

B3cm

C4cm

D5cm

E6cm

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Question 1132

jamb 1980

Find the roots of the equation 10x² - 13x - 3 = 0

Ax = \(\frac{3}{5}\) or -\(\frac{1}{2}\)

Bx = \(\frac{3}{10}\) or -1

Cx = \(\frac{3}{10}\) or 1

Dx = \(\frac{1}{5}\) or \(\frac{-3}{2}\)

Ex = -\(\frac{1}{5}\) or \(\frac{3}{2}\)

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Question 1133

jamb 1980

List all integer values of x satisfying the inequality -1 < 2x - 5 \(\leq\) 5

B3, 4, 5

C2, 3, 4

D3, 4

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Question 1134

jamb 1980

The median of the set of numbers 4, 9, 4, 13, 7, 14, 10, 17 is

A13

C\(\frac{19}{2}\)

D\(\frac{39}{4}\)

E10

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Question 1135

jamb 1980

When a dealer sells a bicycle for N81 he makes a profit of 8%. What did he pay for the bicycle?

AN73

BN74.52

CN75

DN87.48

EN75.52

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Question 1136

jamb 1980

Rationalize the denominator of the given expression \(\frac{\sqrt{1 + a} - \sqrt{a}}{\sqrt{1 + a} + \sqrt{a}}\)

A1 + 2a - 2\(\sqrt{a(1 + a)}\)

B\(\sqrt{1(1 + a)}\)

C2a - 2\(\sqrt{a(1 + a)}\)

D1 + 2a - 2\(\sqrt{a + b}\)

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Question 1137

jamb 1980

Which of the following is NOT a factor of 12\(^{4}\) - 5\(^{4}\)?

B13

C17

D49

E169

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Question 1138

jamb 1980

Evaluate \((2^{0} + 4^{-\frac{1}{2}})^{2}\)

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

B\(\frac{5}{4}\)

C\(\frac{9}{4}\)

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Question 1139

jamb 1980

Write down the number 0.0052048 correct to three significant figures

A0.005

B0.0052

C0.00520

D5.2048

E5204

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Question 1140

jamb 1980

Find, correct to three significant figures, the value of \(\sqrt{41830}\).

A205

B647

C2050

D6470

E64.7

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