Home ยป Past Questions ยป Mathematics ยป Jamb ยป 2012 ยป Page 2
22

Find the equation of the line through the points (-2, 1) and (-\(\frac{1}{2}\), 4)

  • A. y = 2x - 3
  • B. y = 2x + 5
  • C. y = 3x - 2
  • D. y = 2x + 1
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23

The distance between the point (4, 3) and the intersection of y = 2x + 4 and y = 7 – x is

  • A. \(\sqrt{13}\)
  • B. \(3\sqrt{2}\)
  • C. \(\sqrt{26}\)
  • D. \(10\sqrt{5}\)
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24

The gradient of the straight line joining the points P(5, -7) and Q(-2, -3) is

  • A. \(\frac{1}{2}\)
  • B. \(\frac{2}{5}\)
  • C. \(-\frac{4}{7}\)
  • D. \(-\frac{2}{3}\)
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25

Calculate the volume of a cuboid of length 0.76cm, breadth 2.6cm and height 0.82cm.

  • A. 3.92cm3
  • B. 2.13cm3
  • C. 1.97cm3
  • D. 1.62cm3
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26

The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x.

  • A. 24o
  • B. 30o
  • C. 33o
  • D. 36o
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27

Given that I3 is a unit matrix of order 3, find |I3|

  • A. -1
  • B. O
  • C. 1
  • D. 2
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28

If \(\begin{vmatrix} 5 & 3 \\ x & 2 \end{vmatrix}\) = \(\begin{vmatrix} 3 & 5 \\ 4 & 5 \end{vmatrix}\), find the value of x

  • A. 3
  • B. 4
  • C. 5
  • D. 7
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29

The binary operation on the set of real numbers is defined by m*n = \(\frac{mn}{2}\) for all m, n \(\in\) R. If the identity element is 2, find the inverse of -5

  • A. \(-\frac{4}{5}\)
  • B. \(-\frac{2}{5}\)
  • C. 4
  • D. 5
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30

The binary operation * is defined on the set of integers such that p * q = pq + p – q. Find 2 * (3 * 4)

  • A. 11
  • B. 13
  • C. 15
  • D. 22
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31

The sum to infinity of a geometric progression is \(-\frac{1}{10}\) and the first term is \(-\frac{1}{8}\). Find the common ratio of the progression.

  • A. \(-\frac{1}{5}\)
  • B. \(-\frac{1}{4}\)
  • C. \(-\frac{1}{3}\)
  • D. \(-\frac{1}{2}\)
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32

The nth term of a sequence is n2 – 6n – 4. Find the sum of the 3rd and 4th terms.

  • A. 24
  • B. 23
  • C. -24
  • D. -25
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33

Find the range of values of m which satisfy (m – 3)(m – 4) < 0

  • A. 2 < m < 5
  • B. -3 < m < 4
  • C. 3 < m < 4
  • D. -4 < m < 3
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34

The value of y for which \(\frac{1}{5}y + \frac{1}{5} < \frac{1}{2}y + \frac{2}{5}\) is

  • A. \(y > \frac{2}{3}\)
  • B. \(y < \frac{2}{3}\)
  • C. \(y > -\frac{2}{3}\)
  • D. \(y < -\frac{2}{3}\)
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35

U is inversely proportional to the cube of V and U = 81 when V = 2. Find U when V = 3

  • A. 24
  • B. 27
  • C. 32
  • D. 36
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36

If y varies directly as \(\sqrt{n}\) and y = 4 when n = 4, find y when n = 1\(\frac{7}{9}\)

  • A. \(\sqrt{17}\)
  • B. \(\frac{4}{3}\)
  • C. \(\frac{8}{3}\)
  • D. \(\frac{2}{3}\)
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37

Solve for x and y in the equations below
x2 – y2 = 4
x + y = 2

  • A. x = 0, y = -2
  • B. x = 0, y = 2
  • C. x = 2, y = 0
  • D. x = -2, y = 0
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38

Find the remainder when 2x3 – 11x2 + 8x – 1 is divided by x + 3

  • A. -871
  • B. -781
  • C. -187
  • D. -178
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39

Make ‘n’ the subject of the formula if w = \(\frac{v(2 + cn)}{1 – cn}\)

  • A. \(\frac{1}{c}(\frac{w - 2v}{v + w})\)
  • B. \(\frac{1}{c}(\frac{w - 2v}{v - w})\)
  • C. \(\frac{1}{c}(\frac{w + 2v}{v - w})\)
  • D. \(\frac{1}{c}(\frac{w + 2v}{v + w})\)
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40

In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
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41

If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P \(\cap\) Q

  • A. {3}
  • B. {2,3}
  • C. {2,3,5}
  • D. {1,2}
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42

Simplify \((\sqrt{6} + 2)^2 – (\sqrt{6} – 2)^2\)

  • A. \(2\sqrt{6}\)
  • B. \(4\sqrt{6}\)
  • C. \(8\sqrt{6}\)
  • D. \(16\sqrt{6}\)
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