Mathematics 2017 Past Questions | JAMB

Study the following Mathematics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

41.  The operation * on the set R of real number is defined by x * y = 3x + 2y − 1, find 3* − 1

  • A. 9
  • B. – 9
  • C. 6
  • D. – 6

42. Find the gradient of the line joining the points (3, 2) and (1, 4)

  • A. 3/2
  • B. 2/1
  • C. -1
  • D. 3/2

43.  Simplify (3√64a3)\(^{−1}\)

  • A. 4a
  • B. \(\frac{1}{8a}\)
  • C. 8a
  • D. \(\frac{1}{4a}\)

44. If \(\frac{2 \sqrt{3} – \sqrt{2}}{\sqrt{3} + 2 \sqrt{2}}\) = m + n √ 6,

find the values of m and n respectively

  • A. 1, − 2
  • B.− 2, n = 1
  • C. \(\frac{-2}{5}\), 1
  • D. \(\frac{2}{3}\)

45. If α and β are the roots of the equation 3x2 + bx − 2 = 0. Find the value of \(\frac{1}{\alpha}\) + \(\frac{1}{\beta}\)

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

46. Find the range of the following set of numbers 0.4, −0.4, 0.3, 0.47, −0.53, 0.2 and −0.2

  • A. 1.03
  • B. 0.07
  • C. 0.03
  • D. 1.0

47. Evaluate 1 − (\(\frac{1}{5}\) x 1\(\frac{2}{3}\)) + (5 + 1\(\frac{2}{3}\))

  • A. 4
  • B. 3
  • C. \(\frac{22}{3}\)
  • D. 3 \(\frac{2}{3}\)

48.  What is the product of 2x2 − x + 1 and 3 − 2x

  • A. 4x3 − 8x2 + 5x + 3
  • B. −4x3 + 8x2 − 5x + 3
  • C. −4x3 − 8x2 + 5x + 3
  • D. 4x3 + 8x2 − 5x + 3
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